title: How to pack an additional symbols.nupkg with new csproj VS2017
body: <p>With the new <code>csproj</code> format in <strong>Visual Studio 2017</strong>, it makes it really easy to build nuget packages. If fact, in properties on the project file gives you a gui and you can enter all the nuget info so its just a click away to pack.</p>
  
  <p>However there are no options in the gui to build a <em>symbols.nupkg</em> that includes the source and PDB for a nuget debugging server.</p>
  
  <p>How can I use this new feature in VS2017 and still create a <em>symbols.nupkg</em>?</p>