Blender Git Loki

"Combine RGB" and "Separate RGB" material nodes:
These nodes allow the user to separate and combine RGB color channels
as in the composite node editor. However they don't contain Alpha
channel as it is treated separately in case of material nodes.
"Combine RGB" allows the user to use values beyond standard float range
([0.0, 1.0]) if value input node is used to feed the value to it.