Add mandatory atomic-image formats

[Try]

In Vulkan/Dx12 R32UINT and R32INT images always support atomic operations.

In Metal it's complicated:

• Metal 3.1 has native support (requires [MTLTextureUsageShaderAtomic bit)
• pre 3.1, it's possible to do software workaround (similar to moltenvk)

[Try]

partially related: https://developer.apple.com/forums/thread/750478 - compiler issues, on iOS with storage image