Magic Cube

Remove statics from the Cube classes.

Remove statics from the Bandaged Cube classes.

Fix the problem reported by Samsung -

1. Fire off the app
2. minimize it, select 'Multi window'
3. put some other app in the lower half of the screen
4. close the lower app
5. our app used to fail to display the upper and lower menu bars.

Convert Square-2 to the new generic scrambling algorithm.

In order to do it we need to introduce a third, artificial rotational axis - otherwise the algorithm would make it impossible to rotate the lower layer and immediatelly after - the upper.

Fix the Square-2 isSolved() (it was wrong even before!)

Convert the Pyraminxes to the new scrambling paradigm.
This leaves only the two Squares.

Convert the 4 Minx'es to the new scrambling paradigm.

Convert the Redi to the new scrambling paradigm.

Introduce pseudorandom balancing into scrambling to all the other already converted objects, i.e. everytihng except for Pyraminxes, Squares, Minxes and the Redi.

Introduce pseudorandom balancing into scrambling in case of the two Dinos (from now on, the more times a particular (ax,layer) combination has been chosen already in the scrambling sequence, the less likely it is to be chosen next).
Fix Dino6 - isSolved(). Sadly, it cannot be the geeneric function - it needs to be another special case.