Add ARM64 support

This release adds ARM64 support.

Port to C++/WinRT

This release finalizes the switch to C++/WinRT.

Version 0.8.2:

• Minor fixes to C++/WinRT version
• First C++/WinRT-based release!

Version 0.8.1-prerelease:

• Switch release mechanism (no code change)

Version 0.8.0-prerelease:

• Port to C++/WinRT

Prerelease port to C++/WinRT

Putting this up so it's easier for me to test. Feel free to take it for a spin, I only ask that you let me know if you run into any issues (stacks are great!).

Minor release

This minor update fixes the embedded pdb path.

First GitHub release!

While CompositionSurfaceFactory has been "released" for awhile now, I forgot to properly mark it on GitHub. Now you can know exactly the commit used to push out the corresponding nuget release!

New in this version:

• Fixed a problem with Win2D 1.21.0
• PDBs are now included
• CFG is now enabled
• Switched from mutex to Critical Section (for some reason this was causing an issue on the Xbox One, but it's now been fixed!)