Add accessors for several lighting related values.
Add some more GE state accessors for light/etc.
Add some more lighting related accessors.
Add some texture-related GE accessors.
Add clut GE state accessors.
Add type safe getter for texture and clut format fields.
Implement some stencil test GE state accessors.
Add logic op/color masking GE state accessors.
Add and use some color/alpha test accessors.
Use lightning GE state accessors where appropriate.
Use the light computation/type GE accessors.
Use the texture-related GE accessors.
Use stencil GE state accessors.
Use GE state accessors in the texcache.
Merge pull request #2883 from unknownbrackets/gpu-minor

Use GE state accessors more often