Magic Cube

Introduce abstract 4,6,8 adn 12 classes.

Move the Movement class from ObjectList to individual object classes.

Realize that the Movements of Rex, Redi, Dino and the Skewbs are all identical and convert those 4 classes into one MovementCornerTwisting.

Minor

Make computing the offset in the Movement class more correct. From now on, in the center of the face the offset if always 0 regardless of the axis.
Before it would always assume that we can add DIST2D to the offset which is originated at the center of the face and this way get an offset which spans from 0 to height of the face. This is not always true - conterexample: half of the triangluar faces of an octahedron which are 'upside down'

Move actual solving the object to PreRender.

(before we had a 'solveObejct()' in preRender already, but that one just starts the Solve Effect!)

Minor

Minor

Minor

Abstract out some methods from the Movement classes. only two remain now: rowFromOffset and enabledAxis.