WIP: Initial progress toward WPF support

[ryanlntn]

I'm attempting to add WPF support but I'm running into a snag with some of the generated header files. Specifically I've been unable to figure out where FacebookDialog.g.h and FacebookProfilePictureControl.g.h are being generated and how they're being included in the other projects. I was thinking it might have something to do with the xbf files of of the same name but I haven't been able to figure out how to open or inspect them.

Any help or guidance would be greatly appreciated. Thanks!

[msftgits]

Hi, I am closing and re-opening this PR to bump the CLA bot. Sorry for the inconvenience!

[khouzam]

Hi @ryanlntn

Thanks for this work.
I would like to make more progress on this before moving it into our develop branch, but I'm not opposed to creating a wpf branch where this work can be iterated over.

For your question about the generated files, these are the native XAML bindings which provide the equivalent to reflection for native code and are created as part of the build process. I don't think that there's an equivalent in WPF as the XAML portions of WPF are C#. I think that the right way to approach this is to break up the XAML and UI dependencies from the core of the library, then we could have the UI portions for Windows 10 be C++ and the WPF ones be written in C#.