- very basic compiling with new kernel works:
 * added a modified processor to handle new api
 * added (experimental) very basic implentation of a few basic shapes (Cube, Sphere, Rectangle, Circle)
 * experimenting around with limitations, possibilities, and what needs to be done to have at least all of the old kernel's
functionality
- started adding some elements from csg.js for improved csg handling in THREECSG (nothing functionnal for now)