[Guava] Add escape hatches for jar includes. (#1365)

Author: jpobst

Android/Guava/Directory.Build.props

@@ -3,9 +3,9 @@
     <!-- Uncomment if a $(PackageVersionSuffix) is ever needed -->
     <!-- <PackageVersionSuffix>-net6preview04</PackageVersionSuffix> -->
     <!-- <PackageVersionSuffix Condition=" '$(BUILD_BUILDID)' != '' ">$(PackageVersionSuffix).$(BUILD_BUILDID)</PackageVersionSuffix> -->
-    <GuavaNuGetVersion>31.1.0$(PackageVersionSuffix)</GuavaNuGetVersion>
+    <GuavaNuGetVersion>31.1.0.1$(PackageVersionSuffix)</GuavaNuGetVersion>
     <GuavaFailureAccessNuGetVersion>1.0.1.6$(PackageVersionSuffix)</GuavaFailureAccessNuGetVersion>
-    <GuavaListenableFutureNuGetVersion>1.0.0.6$(PackageVersionSuffix)</GuavaListenableFutureNuGetVersion>
+    <GuavaListenableFutureNuGetVersion>1.0.0.7$(PackageVersionSuffix)</GuavaListenableFutureNuGetVersion>
 
     <!-- Opt out of C#8 features to maintain compatibility with legacy -->
     <AndroidBoundInterfacesContainConstants>false</AndroidBoundInterfacesContainConstants>

Android/Guava/source/Guava.ListenableFuture/Guava.ListenableFuture.targets

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup Condition=" '$(AndroidApplication)' == 'true' ">
+  <ItemGroup Condition=" '$(AndroidApplication)' == 'true' And '$(XamarinGoogleGuavaListenableFutureOptOut)' != 'true' ">
     <AndroidJavaLibrary Include="$(MSBuildThisFileDirectory)..\..\jar\*.jar" />
   </ItemGroup>
 </Project>

Android/Guava/source/Guava/Guava.targets

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup>
-    <EmbeddedReferenceJar Include="$(MSBuildThisFileDirectory)..\..\jar\*.jar" />
+  <ItemGroup Condition=" '$(AndroidApplication)' == 'true' And '$(XamarinGoogleGuavaOptOut)' != 'true' ">
+    <AndroidJavaLibrary Include="$(MSBuildThisFileDirectory)..\..\jar\*.jar" />
   </ItemGroup>
 </Project>