[PATCH v2 0/3] MR766: Add more stubbed cache infrastructure

[Stefan Dösinger (＠stefan)]

This adds the beginnings of vkd3d_shader_cache and links it up with ID3D12ShaderCacheSession. No actual data is stored yet, this will come in the next series.

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  v2: vkd3d: Implement reopening existing caches.
      vkd3d: Implement opening and closing shader caches.
      tests: Add CreateShaderCacheSession pointer clearing tests.

https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/766