Surround D3D10_SHADER_RESOURCES_MAY_ALIAS with #ifdef to avoid build errors with some versions of D3D SDK
Surround D3D10_SHADER_RESOURCES_MAY_ALIAS with #ifdef to avoid build errors with some versions of D3D SDK

Fixes #773

c64kernal/OpenSubdiv,c64kernal/OpenSubdiv,c64kernal/OpenSubdiv