d3dcompiler_41: reflection interface.

[Rico Schüller]

Hi,

attached is a hacky patch which forwards the reflection interface from 
d3dcompiler_41 to d3dcompiler_43.

I have a question to that implementation:

DEFINE_GUID is used twice (dlls/dxguid/dx10guid.c and 
dlls/d3dcompiler_41/reflection.c) which could be bad. But the define was 
removed from the d3d11shader.h from ms, so it isn't officially available 
anymore. Should that be in a separate header to reduce redundancy or is 
the usage of both defines fine here?

Cheers
Rico