[vendor] directx: add d3d12sdklayers.h

This is an MIT-licensed header from Microsoft, which contains the
Direct3D 12 debug layer.

This header is slightly modified to be able to compile on older
MinGW versions.
This commit is contained in:
Quantum 2022-01-15 23:05:04 -05:00 committed by Geoffrey McRae
parent 4c271f8744
commit 5392f815af

7623
vendor/directx/d3d12sdklayers.h vendored Normal file

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