Vulkan <-> DXGI Format constant utility

[walbourn]

Could be useful to have a pair of functions which maps between Vulkan formats and DXGI formats (i.e. VK_FORMAT_R8_UNORM <-> DXGI_FORMAT_R8_UNORM, VK_FORMAT_R16G16B16A16_SFLOAT<->DXGI_FORMAT_R16G16B16A16_FLOAT, etc.)

https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VkFormat.html

Note all defined Vulkan formats have DXGI equivalents.

[AlbertHuang96]

it may be helpful https://github.com/doitsujin/dxvk/blob/master/src/dxgi/dxgi_format.cpp