This update is an overdue fix to the vertex coloring which wasn't quite correctly applied and flatout did not work properly with rotated meshes.

• fixed Baby 3D plugin handling of vertex colors especially concerning rotated meshes
• updated B3D Box, Plane, Cylinder and Heightmap behavior in regards to this change
• added Baby 3D Plugin expression "vcPos" returning r, g or b color values at a given position in 3D space
• removed unintentionally included B3D Box action "Create decal" which didn't work (yet?) anyway