Got FSR3 working for DX11 games (Patreon)

Well the method I used to get FSR2 (before it got native dx11 support) and XeSS working for DX11 games, seem to also works for FSR3.

Needed to use some extra tricks on getting the swapchain working but seem to work out already.

I'll implemente FSR3 for the current DX11 games I have already made mods for before working on a new game.