[Bf-python] RenderData - lacking functions

[Ken Hughes]

Ken Hughes wrote:
> Juho Vepsäläinen wrote:
> 
>> yafrayGIEmitPower(power) could be added to the RenderData module. It 
>> works like yafrayGIPower except it alters the emit value.

Actually, yafrayGIPower() is equivalent to the "EmitPwr:"button in the 
UI, which seems weird.  On the other hand, the "GI Pwr" button affects 
the indirect lighting (r.GIindirpower) when "Method" is "Full" is not 
wrapped.

Ken