Cuboids: fully implement the first 3 cuboids (2x3x2, 3x2x3, 3x4x3)
Make the cube meshes even a bit smaller
Make cube meshes much smaller (by initroducing two distinct types of cubits -
1) corners and edges2) face cubits (which now have simpler meshes)
Changes to the Cube cubits; new cube meshes.
Improve the Jing mesh.
Initial commit