TwistyPuzzleLib

Carve out the fifth layer: touch control.

minor

Carve out the fourth layer: stickers.

Carve out the third layer from the Puzzle implementation: TwistyPuzzleSolved, i.e. detection of the solved state.

Next: the fourth layer: stickers.
Then: fifth layer: touch control.
Then: everything else. (metadata?)

API name changes; fix for Dino4's solved state!

Minor

remove numLayers from parameter list of 3 next methods.

correction.

remove numLayers from 4 API methods.

Clean up TwistyObjectWithMesh's API (remove getDist3D() and getSize() )