[1.721.1-preview] d3d12.h introduced ID3D12StateObjectDatabaseFactory1 which references ID3D12InfoQueue, but the header is missing the forward declaration

[sivileri]

ID3D12StateObjectDatabaseFactory1 references ID3D12InfoQueue in d3d12.h/idl. The .idl file has the forward decl but it's missing in the generated .h file. This has raised some build issues in projects that don't include D3D12InfoQueue definitions from other header files nor forward declare it before including d3d12.h.