title: Include all dependencies using dotnet pack
body: <p>Is there any way to force <code>dotnet pack</code> to include all referenced assemblies (all dependencies in project.json)?</p>
  
  <p>I believe this is related:</p>
  
  <ul>
  <li><a href="https://github.com/dotnet/cli/issues/1290" rel="noreferrer">https://github.com/dotnet/cli/issues/1290</a></li>
  <li><a href="https://github.com/dotnet/cli/issues/3959" rel="noreferrer">https://github.com/dotnet/cli/issues/3959</a></li>
  </ul>