Magic Cube

1) Cube: convert it to the latest library. Main difference: objects are rendered better, individual cubits have rounded corners.
2) Examples: some adjustments to MeshJoin & Predeform
3) Library: fix a bug in main_vertex_shader's 'degree' function, which didn't work proprely in case of a vertex which was exactly at the center (i.e. vector PS was zero)

In library: allow a mixture of a deep and shallow copy of a Mesh ( mVertAttribs1 might be copied deeply or shallowly, mVertAttribs2 are always copied deeeply).
Port RubikCube to the new library.

Fix a nasty logic error that let people submit bogus results.

- bump version to 1.1.2
- fix one crasher observed in the field ( we need to adjust the Levels Spinner in Play state if Object changed in Pattern or Solver states )

Add Crashlytics logs

Fixes for the fact that one could easily cheat - just pause the app while solving and come back to it, the time would reset to 0 and the object to unscrambled :(

Add two new UI States: Ready and Done.

Do not crash if we are running on device which does not support OpenGL ES 3.0

Improve logging in case the Distorted Library returned an error - add Crashlytics custom keys.

Bugfix in StateSolving upper text - before when we won, and NewRecord dialog was on the screen, and at tis moment we rotated the screen, the uppoer text would revert back to 'Ready?'