Add aspnet-razor dotnet/standard dependency (#858)

Author: dagood

repos/aspnet-razor.proj

@@ -23,5 +23,9 @@
     <OrchestratedManifestBuildName>N/A</OrchestratedManifestBuildName>
   </PropertyGroup>
 
+  <ItemGroup>
+    <RepositoryReference Include="standard" />
+  </ItemGroup>
+
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))/dir.targets" />
 </Project>

repos/known-good.proj

@@ -12,7 +12,6 @@
 
     <!-- Tier 1 -->
     <RepositoryReference Include="application-insights" />
-    <RepositoryReference Include="aspnet-razor" />
     <RepositoryReference Include="common" />
     <RepositoryReference Include="netcorecli-fsc" />
     <RepositoryReference Include="newtonsoft-json" />
@@ -23,6 +22,7 @@
     <RepositoryReference Include="roslyn" />
 
     <!-- Tier 2 -->
+    <RepositoryReference Include="aspnet-razor" />
     <RepositoryReference Include="msbuild" />
     <RepositoryReference Include="nuget-client" />
     <RepositoryReference Include="websdk" />