[Gzz] 19th, 20th (jvk)

[Janne Kujala]

19th & 20th: Texture work

Implemented emboss texturing pass.

Thought about general hw profile independent random texture 
parameters. Colors, vectors, and texgens seem general, but 
texture images are less general.
We already have RGB and HILO texture types and we will most 
likely be needing new, unexpected texture types or other 
similar parameters with a finite number of choices.
It could be better to not directly share discrete parameters
among profiles but the code generating them.

        jvk