Added support for the IOSResolver to preserve pods from Unity.

When GVR is enabled Unity creates a Podfile with the GVR sdk, which
we parse and assume all of the pod dependencies in the Podfile we
generate. Also, since this causes the workspace to be loaded, we don't
need to inject dependencies from podfiles into the xcodeproject.

Change-Id: I812663a9aa8f030b83411cf7b9c1731f488f3bfd

Author: johnb003

source/IOSResolver/IOSResolver.csproj

@@ -68,5 +68,9 @@
       <Project>{82EEDFBE-AFE4-4DEF-99D9-BC929747DD9A}</Project>
       <Name>PlayServicesResolver</Name>
     </ProjectReference>
+    <ProjectReference Include="..\VersionHandler\VersionHandler.csproj">
+      <Project>{1E162334-8EA2-440A-9B3A-13FD8FE5C22E}</Project>
+      <Name>VersionHandler</Name>
+    </ProjectReference>
   </ItemGroup>
 </Project>