Fix missing .xaml references (#11805)

I'm working on making the FastUpToDate check in Vs work for the Terminal project. This is one of a few PRs in this area.

FastUpToDate lets vs check quickly determine that it doesn't need to do anything for a given project. 

However, a few of our projects don't produce all the right artifacts, or check too many things, and this eventually causes the `wapproj` to rebuild, EVERY TIME YOU F5 in VS. 

This second PR deals with some projects MYSTERIOUSLY depending on the `.xaml` files from `Terminal.Control`, even when they by all accounts shouldn't. TerminalSettingsModel ISN'T EVEN A XAML project, so I have no idea why it thinks it needs these xaml files. The TerminalAppLib project thinking it needs them - makes more sense, but is still confusing. 
Below are my verbatim notes, which led to the solution in this PR. 


```
34>------ Up-To-Date check: Project: Microsoft.Terminal.Settings.Model.Lib, Configuration: Debug x64 ------
34>Project is not up-to-date: build output 'c:\users\migrie\dev\public\terminal\bin\x64\debug\microsoft.terminal.settings.model.lib\microsoft.terminal.control\searchboxcontrol.xaml' is missing
```

* Just copying the xaml files from `bin\x64\debug\microsoft.terminal.control\microsoft.terminal.control\*.xaml` to `bin\x64\debug\microsoft.terminal.settings.model.lib\microsoft.terminal.control` seemed to fix this.
* the .xbfs were already there
* It's very unclear why these were ever needed? They aren't used in the build for `Microsoft.Terminal.Settings.Model.Lib`. They aren't copied as a part of the build either - no .xaml files are copied at all in fact
* [ ] Does TSE have these .xamls in it's output?
* UPDATE: checking out main, and building again - ran into this again. WHY??
* Cleaned again, then built TerminalApp.vcxproj. File is no longer needed? nothing makes sense.


* `obj\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsof.CA5CAD1A.tlog\Microsoft.Terminal.Settings.Model.Lib.write.1u.tlog`:
```
C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\SearchBoxControl.xbf
C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\TermControl.xbf
C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\TSFInputControl.xbf
C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.UI.Xaml\Assets\NoiseAsset_256X256_PNG.png
C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\SearchBoxControl.xbf
C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\TermControl.xbf
C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\TSFInputControl.xbf
C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\SearchBoxControl.xbf
C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\TermControl.xbf
C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\TSFInputControl.xbf
C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\SearchBoxControl.xaml
C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\TermControl.xaml
C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\TSFInputControl.xaml
```

From the build:
```
18>Target _CopyOutOfDateSourceItemsToOutputDirectory:
18>  Skipping target "_CopyOutOfDateSourceItemsToOutputDirectory" because all output files are up-to-date with respect to the input files.
18>  Input files:
18>      C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Control\Microsoft.Terminal.Control\SearchBoxControl.xbf
18>      C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Control\Microsoft.Terminal.Control\TermControl.xbf
18>      C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Control\Microsoft.Terminal.Control\TSFInputControl.xbf
18>      C:\Users\migrie\dev\public\terminal\packages\Microsoft.UI.Xaml.2.7.0-prerelease.210913003\runtimes\win10-x64\native\Microsoft.UI.Xaml\Assets\NoiseAsset_256X256_PNG.png
18>  Output files:
18>      C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\SearchBoxControl.xbf
18>      C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\TermControl.xbf
18>      C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.Terminal.Control\TSFInputControl.xbf
18>      C:\Users\migrie\dev\public\terminal\bin\x64\Debug\Microsoft.Terminal.Settings.Model.Lib\Microsoft.UI.Xaml\Assets\NoiseAsset_256X256_PNG.png
```

* Hmm, `21>Project is not up-to-date: build output 'c:\users\migrie\dev\public\terminal\bin\x64\debug\terminalapplib\microsoft.terminal.control\searchboxcontrol.xaml' is missing`
  as well.

Author: zadjii-msft

src/cascadia/TerminalApp/TerminalAppLib.vcxproj

@@ -318,7 +318,29 @@
     </ProjectReference>
     <!-- For whatever reason, we can't include the TerminalControl and
     TerminalSettings projects' winmds via project references. So we'll have to
-    manually include the winmds as References below -->
+    manually include the winmds as References below
+
+    BODGY: we do need to add a ProjectReference to TerminalControl.vcxproj,
+    with Private=true, ReferenceOutputAssembly=false, so that Visual Studio's
+    "Fast Up-to-date Check" will work with this project. If we don't, the Fast
+    Up-to-date Check will look for the .xaml files from that project in our
+    output, which won't actually be there.
+
+    We do still need to separately reference the winmds manually below, which is annoying.
+    -->
+    <ProjectReference Include="$(OpenConsoleDir)src\cascadia\TerminalControl\dll\TerminalControl.vcxproj">
+      <!-- Private:true and ReferenceOutputAssembly:false, in combination with
+      the manual reference to TerminalControl.winmd below make sure that this
+      project will compile correct, and that we won't roll up the TermControl
+      xbf's into the packaging project twice. -->
+      <Private>true</Private>
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+    </ProjectReference>
+    <ProjectReference Include="$(OpenConsoleDir)src\cascadia\TerminalSettingsEditor\Microsoft.Terminal.Settings.Editor.vcxproj">
+      <Private>true</Private>
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+    </ProjectReference>
+
   </ItemGroup>
   <PropertyGroup>
     <!-- This is a hack to get the ARM64 CI build working. See

src/cascadia/TerminalSettingsModel/Microsoft.Terminal.Settings.ModelLib.vcxproj

@@ -197,9 +197,29 @@
       <Project>{CA5CAD1A-039A-4929-BA2A-8BEB2E4106FE}</Project>
       <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
     </ProjectReference>
+
     <!-- For whatever reason, we can't include the TerminalControl and
     TerminalSettings projects' winmds via project references. So we'll have to
-    manually include the winmds as References below -->
+    manually include the winmds as References below
+
+    BODGY: we do need to add a ProjectReference to TerminalControl.vcxproj,
+    with Private=true, ReferenceOutputAssembly=false, so that Visual Studio's
+    "Fast Up-to-date Check" will work with this project. If we don't, the Fast
+    Up-to-date Check will look for the .xaml files from that project in our
+    output, which won't actually be there.
+
+    We do still need to separately reference the winmds manually below, which is annoying.
+    -->
+
+    <ProjectReference Include="$(OpenConsoleDir)src\cascadia\TerminalControl\dll\TerminalControl.vcxproj">
+      <!-- Private:true and ReferenceOutputAssembly:false, in combination with
+      the manual reference to TerminalControl.winmd below make sure that this
+      project will compile correct, and that we won't roll up the TermControl
+      xbf's into the packaging project twice. -->
+      <Private>true</Private>
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+    </ProjectReference>
+
   </ItemGroup>
   <ItemGroup>
     <!-- Manually add references to each of our dependent winmds. Mark them as
@@ -266,4 +286,5 @@
   </Target>
   <Import Project="$(SolutionDir)build\rules\CollectWildcardResources.targets" />
   <Import Project="..\..\..\packages\Microsoft.VisualStudio.Setup.Configuration.Native.2.3.2262\build\native\Microsoft.VisualStudio.Setup.Configuration.Native.targets" Condition="Exists('..\..\..\packages\Microsoft.VisualStudio.Setup.Configuration.Native.2.3.2262\build\native\Microsoft.VisualStudio.Setup.Configuration.Native.targets')" />
+
 </Project>

src/cascadia/TerminalSettingsModel/dll/Microsoft.Terminal.Settings.Model.vcxproj

@@ -65,7 +65,7 @@
     </ProjectReference>
 
     <ProjectReference Include="$(OpenConsoleDir)src\cascadia\TerminalControl\dll\TerminalControl.vcxproj">
-      <!-- Private:false and ReferenceOutputAssembly:false, in combination with
+      <!-- Private:true and ReferenceOutputAssembly:false, in combination with
       the manual reference to TerminalControl.winmd below make sure that this
       project will compile correct, and that we won't roll up the TermControl
       xbf's into the packaging project twice. -->