Move Windows Compat pack to NuGet pack task

This is a straight port from pkgproj to csproj and also enables building
the compat pack together with its dependencies.

As usual, if the compat pack alone should be built (i.e. for inner loop
tests), the `--no-dependencies` flag should be used,
i.e. `dotnet build --no-dependencies`.

src/libraries/Microsoft.Windows.Compatibility/src/Microsoft.Windows.Compatibility.csproj

@@ -0,0 +1,70 @@
+<Project Sdk="Microsoft.Build.NoTargets">
+  <PropertyGroup>
+    <!-- Using a csproj extension to get the correct multi-targeting behavior. -->
+    <TargetFrameworks>$(NetCoreAppCurrent);netcoreapp3.1;netstandard2.1;netstandard2.0</TargetFrameworks>
+    <!-- The project doesn't compile anything therefore create the package during build. -->
+    <GeneratePackageOnBuild Condition="'$(BuildingAnOfficialBuildLeg)' != 'true'">true</GeneratePackageOnBuild>
+    <IsPackable>true</IsPackable>
+    <!-- Reference the outputs for the dependency nodes calculation. -->
+    <NoTargetsDoNotReferenceOutputAssemblies>false</NoTargetsDoNotReferenceOutputAssemblies>
+    <!-- This is a meta package and doesn't contain any libs. -->
+    <NoWarn>$(NoWarn);NU5128</NoWarn>
+    <PackageDescription>This Windows Compatibility Pack provides access to APIs that were previously available only for .NET Framework. It can be used from both .NET Core as well as .NET Standard.</PackageDescription>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="$(LibrariesProjectRoot)Microsoft.Win32.Registry.AccessControl\src\Microsoft.Win32.Registry.AccessControl.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)Microsoft.Win32.SystemEvents\src\Microsoft.Win32.SystemEvents.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.CodeDom\src\System.CodeDom.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.ComponentModel.Composition\src\System.ComponentModel.Composition.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.ComponentModel.Composition.Registration\src\System.ComponentModel.Composition.Registration.csproj"
+                      Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'netstandard2.1'))" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Configuration.ConfigurationManager\src\System.Configuration.ConfigurationManager.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Data.Odbc\src\System.Data.Odbc.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Data.OleDb\src\System.Data.OleDb.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Diagnostics.EventLog\src\System.Diagnostics.EventLog.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Diagnostics.PerformanceCounter\src\System.Diagnostics.PerformanceCounter.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.DirectoryServices.AccountManagement\src\System.DirectoryServices.AccountManagement.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.DirectoryServices.Protocols\src\System.DirectoryServices.Protocols.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.DirectoryServices\src\System.DirectoryServices.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Drawing.Common\src\System.Drawing.Common.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.IO.Packaging\src\System.IO.Packaging.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.IO.Ports\src\System.IO.Ports.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Management\src\System.Management.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Reflection.Context\src\System.Reflection.Context.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Runtime.Caching\src\System.Runtime.Caching.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Security.Cryptography.Pkcs\src\System.Security.Cryptography.Pkcs.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Security.Cryptography.ProtectedData\src\System.Security.Cryptography.ProtectedData.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Security.Cryptography.Xml\src\System.Security.Cryptography.Xml.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Security.Permissions\src\System.Security.Permissions.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.ServiceModel.Syndication\src\System.ServiceModel.Syndication.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.ServiceProcess.ServiceController\src\System.ServiceProcess.ServiceController.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Speech\src\System.Speech.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Text.Encoding.CodePages\src\System.Text.Encoding.CodePages.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Threading.AccessControl\src\System.Threading.AccessControl.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="System.Data.SqlClient" Version="$(SystemDataSqlClientVersion)" />  
+    <PackageReference Include="System.ServiceModel.Primitives;
+                                     System.ServiceModel.Duplex;
+                                     System.ServiceModel.Http;
+                                     System.ServiceModel.NetTcp;
+                                     System.ServiceModel.Security"
+                      Version="$(ServiceModelVersion)" />
+  </ItemGroup>
+
+  <!-- Packages which are inbox in NET6 and shouldn't and can't be referenced anymore. -->
+  <ItemGroup Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net6.0'))">
+    <PackageReference Include="Microsoft.Win32.Registry" Version="$(MicrosoftWin32RegistryVersion)" />
+    <PackageReference Include="System.Data.DataSetExtensions" Version="$(SystemDataDataSetExtensionsVersion)" />
+    <PackageReference Include="System.IO.FileSystem.AccessControl" Version="$(SystemIOFileSystemAccessControlVersion)" />
+    <PackageReference Include="System.IO.Pipes.AccessControl" Version="$(SystemIOPipesAccessControlVersion)" />
+    <PackageReference Include="System.Reflection.Emit" Version="$(SystemReflectionEmitVersion)" />
+    <PackageReference Include="System.Reflection.Emit.ILGeneration" Version="$(SystemReflectionEmitILGenerationVersion)" />
+    <PackageReference Include="System.Reflection.Emit.Lightweight" Version="$(SystemReflectionEmitLightweightVersion)" />
+    <PackageReference Include="System.Security.AccessControl" Version="$(SystemSecurityAccessControlVersion)" />
+    <PackageReference Include="System.Security.Cryptography.Cng" Version="$(SystemSecurityCryptographyCngVersion)" />
+    <PackageReference Include="System.Security.Principal.Windows" Version="$(SystemSecurityPrincipalWindowsVersion)" />
+  </ItemGroup>
+</Project>

src/libraries/pkg/baseline/packageIndex.json

@@ -1439,25 +1439,6 @@
         "6.0.0.0": "6.0.0"
       }
     },
-    "Microsoft.Windows.Compatibility": {
-      "StableVersions": [
-        "2.0.0",
-        "2.0.1",
-        "2.1.0",
-        "2.1.1",
-        "3.0.0",
-        "3.0.1",
-        "5.0.0"
-      ],
-      "InboxOn": {}
-    },
-    "Microsoft.Windows.Compatibility.Shims": {
-      "StableVersions": [
-        "2.0.0",
-        "2.0.1"
-      ],
-      "InboxOn": {}
-    },
     "Microsoft.XmlSerializer.Generator": {
       "StableVersions": [
         "1.0.0",