Investigate Model Builder not working on UWP

[luisquintanilla]

To-Do

• Repro issue (Validated by @luisquintanilla)
• Investigate whether there are technical limitations to making Model Builder work on UWP

Suggested workarounds

1. Use ML.NET CLI
2. Use C# Class Library
   • Create C# Class Library project
   • Add Machine Learning Model to C# Class Library project
   • Add project reference in UWP app to C# Class Library project in ML.NET
3. Use code-first AutoML API

[luisquintanilla]

This issue isn't being prioritized at the moment. As we hear more feedback we can revisit. Closing for now.