[PATCH v2 0/2] MR11058: winemac: Implement ExtEscape queries for Metal layer creation and release.

[Marc-Aurel Zent (＠mzent)]

This exposes similar functionality to `vkCreateWin32SurfaceKHR`, just for projects that implement some sort of graphics backend directly on top of Metal that do not use Vulkan as an in-between layer, like DXMT.

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  v2: winemac: Use MACDRV_ESCAPE_*_SURFACE in macdrv_vulkan_surface_create.
      winemac: Implement ExtEscape queries for Metal layer creation and release.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/11058