[PATCH v3 0/7] MR5128: winevulkan: Use VK_EXT_map_memory_placed for memory mapping on wow64.

[Jacek Caban (＠jacek)]

With the new extension, we may implement wow64 correctly, without `VK_EXT_external_memory_host` hacks. This is both more correct and more performant (essentially eliminating Vulkan wow64 performance penalty).

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  v3: winevulkan: Use VK_EXT_map_memory_placed for memory mapping on wow64.
      winevulkan: Add support for VK_EXT_map_memory_placed.
      winevulkan: Refactor extra extensions handling in wine_vk_device_convert_create_info.
      winevulkan: Use handle map for memory objects.
      winevulkan: Rename wine_device_memory mapping to vm_map.
      winevulkan: Remove no longer needed spec workarounds.
      winevulkan: Update to VK spec version 1.3.278.

https://gitlab.winehq.org/wine/wine/-/merge_requests/5128