Resolution handling XBOX Fixes

Aligns ClientRect discovery on XBOX to retroarch one, using HDMI link to understand resolution instead of UWP window dimension

Enable higher level on XBOX

Xbox is missing sampler view extension due to an older SDK level. Force it on for yabasanshiro to work

Working with UWP Retroarch

This release allows GL cores on retroarch to work over MESA Gallium d3d12 driver.
These files are also included in my Retroarch UWP release, available here https://github.com/aerisarn/RetroArch-uwp