[Bf-python] Attribute casing

[Ken Hughes]

Yehoshua Sapir wrote:
> Gilbert, Joseph wrote:
> 
>> Yes correctNorMap sounds like it should be correct for the texture
>> button. Col, Nor, etc are part of a bit toggle regarding mtex->mapto. 
>> These should be module constants. Col, Nor, Var are attributes that relate to
>> mtex->colFac, mtex->norFac, and mtex->varFac attributes of the Mtex
>> struct.
>> 
> My patch avoids exposing the bitfield to the Python scripter and instead 
> provides Python Booleans. (For example, there's a correctNorMap 
> attribute that gives you True or False rather than having to do math 
> with some bitfield and a constant.) The interface is a lot nicer IMO. 
> Anyway, because of this, I have separate variables for the map to buttons.

I think this is a good approach to making the BPython API resemble the 
UI as much as possible.  In fact, I was prepping for "tp_getset-ing" 
sceneRender.c (Blender.Scene.RenderData) and noticed that Joseph had 
done this for the myriad of button in the Scene UI.  (Plus he had a nice 
generic bitfield manipulation procedure which I modified slightly and 
put into gen_utils.c)  So while I'm adding new atributes to modules, can 
I get a consensus that I also implement enable/disable attribures for 
bitfield access?

Ken