Simplify and spped up the DistortedCubes target.
Advanced tesselation of DistortedCubes should be done! This fixes Bug #22
beginnings of support for advanced tesselation in DistortedCubes target (still doesn't quite work)
minor formatting stuff
Add DistortedGridFactory to share Grids among same-shaped DistortedObjects.
remove the 'Color' vertex attribute.
Minor: deal with IntelliJ warnings
Vertex3D almost finished - there's still a problem when parts of Cubes get culled if the Object gets Deformed or Distorted to the left (curiously only the 'left' direction seems to trigger this!)
1. new package 'message'2. Rename the 'Grid' classes to match