title: Embed Interop Types to false in NuGet package
body: <p>There's an assembly I need to reference in my project, that needs to have the "Embed Interop Types" set to false in order to successfully compile. If I don't put this option, I get the compile time error: </p>
  
  <pre><code>A reference was created to embedded interop assembly 'Interop.MSTSCLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' because of an indirect reference to that assembly created by assembly 'AxInterop.MSTSCLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. Consider changing the 'Embed Interop Types' property on either assembly.
  </code></pre>
  
  <p>If I were to simply have a project, I would set the option to false and never worry about it, but now that I'm making a nuget package with it, I'm trying to find a way to set the option <em>when the package is added</em>.</p>
  
  <p>My nuspec file currently has this (ommiting metadata):</p>
  
  <pre><code>&lt;files&gt;
    &lt;file src="Interop.MSTSCLib.dll" target="lib\net40" /&gt;
    &lt;file src="AxInterop.MSTSCLib.dll" target="lib\net40" /&gt;
  &lt;/files&gt;
  </code></pre>
  
  <p>I've looked at the nuget documentation but couldn't find how to do this. Is it even possible?</p>