title: Did MVVMCross support Shared Project?
body: <p>I want to embedd MvvmCross into my Xamarin Shared Project, I add a view named <strong>HomePage.xaml</strong>, and add a binding viewmodel named <strong>HomeViewModel</strong>, also I add <code>Setup.cs</code> file and init code on platform project, but this issue came accross:
  <code>
  MvvmCross.Platform.Exceptions.MvxException: Problem seen creating View-ViewModel lookup table - you have more than one View registered for the ViewModels: 2*HomeViewModel (HomeView,HomeView) ---&gt; System.ArgumentException: An item with the same key has already been added. Key: MvxFormsTemplate.ViewModels.HomeViewModel
  </code>
  Does MvvmCross support Shared Project? If it worked, any template could be referenced?</p>