GenerateDepsFile should honor ReferenceOutputAssembly="false" on ProjectReference

[eerhardt]

Repo steps

Create a project with a ProjectReference that looks like:

<ProjectReference Include="..\Library\Library.csproj" ReferenceOutputAssembly="false" />

dotnet build the outer project.

Expected results

The build should succeed

Actual results

The build fails

C:\Program Files\dotnet\sdk\1.0.0\Sdks\Microsoft.NET.Sdk\build\Microsoft.NET.Sdk.targets(92,5): error : Cannot find project info for 'F:\DotNetTest\NoCompile\Library\Library.csproj'. This can indicate a missing project reference. [F:\DotNetTest\NoCompile\App\App.csproj]

Notes

We should look for ReferenceOutputAssembly metadata on ProjectReferences, and skip them when generating the deps.json file.

[rainersigwald]

Duplicate of #939.