Building FNA3D for UWP
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FNA3D uses Visual Studio 2017 to build on Xbox One.

Dependencies
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Before building, download SDL2's source code from SDL's website:

http://libsdl.org/download-2.0.php

Extract the ZIP file's SDL2 directory (called something like 'SDL2-2.0.8') as
a sibling to your FNA3D checkout and rename it to 'SDL2', so that you have
directories named 'FNA3D' and 'SDL2' next to each other.

Compiling
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1. Build SDL2/VisualC-WinRT/UWP_VS2015/SDL-UWP.sln
2. Build FNA3D.sln
3. Grab FNA3D.dll and SDL2.dll, ship it!
