Support NVAPI D3D12 SER extension

[oscarbg]

Hi,

would be possible supporting the NVAPI D3D12 SER extension via the VK NV VK_NV_ray_tracing_invocation_reorder extension..
seems relatively "easy" to support being just a "hint" passed to RT pipelines from quick inspection..
also should be more useful in real world than OMM or other efforts like DLSS-G:
for example "Sackboy: A Big Adventure" supports that, it seems..
also NV Path tracing SDK sample (in D3D12 mode) and perhaps even Omniverse DX12 renderer(?)..
also Portal RTX uses SER, I don't know if it's VK or DX12 since it uses DXVK but I believe it's in DX12 mode also?

thanks..

[Saancreed]

@oscarbg See my reply here: #123 (comment)