Vertex based fur length control

[rstecca]

Fur length can now be driven by vertices' colors. Red channel only is used so there's room for other parameters to be controlled with this method. Vertices colors can easily be edited with Blender or any other 3D editor or they can be set by a c# script.

[benthroop]

Heck yeah! I was just wondering about this feature. Will offer feedback once tested.