constants (the Mesa bug) and VRally use the 0..95 indexes so fix it
- fix normalize for some HW VertexShader inputs
- trying to fix the combination of NV_texture_combine_4 with
texture_combine_EXT (impl of D3DTOP_DISABLE, D3DTOP_MODULATE for
NV_texture_combine_4)
- if shaders disabled declare to support 0 for MaxVertexShaderConst.
- pixel shader code split into a new "COM object" (as done before for
vertex shader)
- some fixes on Validate* functions call types
- add pixel shader (ie fragment_program) detection on caps code
- remove non-esthetic c++ comments into c comments block ;)
- more more debug
- indent, cleanups
- trying to use DIFFUSE and SPECULAR for vertex shader
- many fixes
- integration with Jason's texture patch