Magic Cube

Bugfix for a crasher

Add German tutorials

Always use only (max) 10 levels - (max) 9 'initial' Levels + Full Scramble.

New Gigaminx tutorials.

Make the Minx objects a little bigger by default.

Fix movements of objects - before it really worked only when an object's FOV was about 60 degrees.

Add Gigaminx dmesh.

Add Gigaminx dmesh.

Do not block the UI if, for some reason, some of the effects failed to get added to the Queue. Just fail to rotate.

Bugfixes as a result of the Samsung Galaxy J4+ investigation:

1) By default, switch off transform feedback in the main program.
Create a new API 'needTransformFeedback()' to call if someone still needs TF in the main program.
2) lower the default max number of vertex effects to 30....