TwistyPuzzleLib

Introduce 'Simple' and 'Nice' meshes.

In the 'magic' app, ObjectType is now only used in RubikObject and RubikObjectList classes and nowhere else.
This is a major step towards being able to download objects from an online repository.

Progress replacing the enum ObjetType with the class RubikObjectList.

Fix projection matrix with which the puzzles get rendered: make it independent of the aspect ratio of the underlying surface.

Progress with ConfigPane.

Progress with ConfigScreen.

Better error reporting.

FIx some issues with ShapeChanging; implement per-object TouchControlSquare and TouchControlMirror.

Implement example ShapreChanging object control and convert the Mirror Cube to use it.

Adjust ShapeChanging so that it can handle concave cubit faces.
Now it is working also in case of the Ivy corner cubits.