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.
Standarize the 'isSolved()' method: now all objects, except one (Dino4) have a standard isSolved().This incidentally also fixes detection of the solved state in case of Diamond4, i.e. a Master FTO.
Square-1: progress with movement.
Make it possible for an object to have different 'cuts' along each of its axis.
Square-1: beginnings