Cleaning up and extracting common project/build config

Author: ebekker

TugDSC.common.props

@@ -0,0 +1,47 @@
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+    <PropertyGroup>
+        <SharedSourceDir>$(MSBuildThisFileDirectory)/src/shared</SharedSourceDir>
+        <NETStandardMoniker>netstandard2.0</NETStandardMoniker>
+        <NETCoreAppMoniker>netcoreapp2.0</NETCoreAppMoniker>
+        <NETFrameworkMoniker>net461</NETFrameworkMoniker>
+    </PropertyGroup>
+
+  <PropertyGroup Condition=" '$(TargetFramework)' == '$(NETStandardMoniker)' ">
+    <DefineConstants>$(DefineConstants);DOTNET_CORE</DefineConstants>
+  </PropertyGroup>
+
+  <PropertyGroup Condition=" '$(TargetFramework)' == '$(NETCoreAppMoniker)' ">
+    <DefineConstants>$(DefineConstants);DOTNET_CORE</DefineConstants>
+  </PropertyGroup>
+
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'NETFrameworkMoniker' ">
+    <DefineConstants>$(DefineConstants);DOTNET_FRAMEWORK</DefineConstants>
+  </PropertyGroup>
+
+
+    <PropertyGroup>
+        <NeutralLanguage>en-US</NeutralLanguage>
+        <Authors>github.com/PowerShellOrg/tug/graphs/contributors</Authors>
+        <!--
+          * https://docs.microsoft.com/en-us/dotnet/csharp/misc/cs0169
+            The private field 'class member' is never used
+          * https://docs.microsoft.com/en-us/dotnet/csharp/misc/cs0649
+            Field 'field' is never assigned to, and will always have its default value 'value'
+          -->
+        <CommonNoWarn>CS0169;CS0649</CommonNoWarn>
+    </PropertyGroup>
+
+    <PropertyGroup>
+        <GenerateAssemblyTitleAttribute>false</GenerateAssemblyTitleAttribute>
+        <GenerateAssemblyDescriptionAttribute>false</GenerateAssemblyDescriptionAttribute>
+        <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
+        <GenerateAssemblyCompanyAttribute>false</GenerateAssemblyCompanyAttribute>
+        <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
+        <GenerateAssemblyCopyrightAttribute>false</GenerateAssemblyCopyrightAttribute>
+        <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
+        <GenerateAssemblyFileVersionAttribute>false</GenerateAssemblyFileVersionAttribute>
+        <GenerateAssemblyInformationalVersionAttribute>false</GenerateAssemblyInformationalVersionAttribute>
+    </PropertyGroup>
+
+</Project>