Import restore sources into Microsoft.VisualStudio.RazorExtension.csproj

Author: Nate McMaster

tooling/Microsoft.VisualStudio.RazorExtension/Microsoft.VisualStudio.RazorExtension.csproj

@@ -29,6 +29,7 @@
     <ImportDirectoryBuildTargets>false</ImportDirectoryBuildTargets>
   </PropertyGroup>
   <Import Project="..\..\version.props" />
+  <Import Project="..\..\build\sources.props" />
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>