d3dx9_36: Stub D3DXComputeTangent
Add the stub function D3DXComputeTangent based on the staging patch. https://bugs.winehq.org/show_bug.cgi?id=41697 Since this will at least make the application go further. Even though the implementation is based on documentation https://learn.microsoft.com/en-us/windows/win32/direct3d9/d3dxcomputetangent