[Bf-python] Texture API- first "sketch"

[Kent Mein]

> As well as creating this new module, I plan on adding the following 
> functions to Material.Material:
> 
> getTextures()- returns the 8 texture channels as an 8-tuple with None
>                for empty channels and Texture objects in the rest
> 
> setTexture(num,tex)- set channel _num_ to texture _tex_
> 
> clearTexture(num)- remove a texture from channel _num_

It would be really nice if it used a list instead of a fixed 8.
I'm sure in the future we will be expanding it so a material can have
more channels.  Maybe not right away but since were working on this stuff now
it might be nice to make it expandable.

Just an idea.

Kent
-- 
mein at cs.umn.edu
http://www.cs.umn.edu/~mein