Explicit resource binding for UAVs

[hekota]

Explicit resource binding support for [milestone] Compile a runnable shader from clang:

• Parse explicit resource binding (llvm/llvm-project@e3fd0b20)
• Write resource binding to metadata - UAVs only (llvm/llvm-project@618e5006)
• [HLSL] Validate register binding type match the decl type llvm-project#57886

[bogner]

This should all be in place as of llvm/llvm-project#104447