TwistyPuzzleLib

Finally! Split TwistyObject into:

- lower class 'TwistyObjectTheoretical' (an object that has no mesh, no stickers, cannot be touch-controlled, but knows how a real object of its kind moves - so can be used e.g. in solvers)

- everything else above it.

In the future, the 'everything else' will be further slipt into...

debugging the new 'surfaces' thing.

Rearrange the order of objectes in the main grid
Up object version to 16

Objects can support or not changing colors of their stickers.

Fix the detection of the solved state.

progress with configurable stickers

(limited) support for different strokes across each edge of each sticker.

progress with new sorting methods.

Next step toward separating TwistyObject metadata.

Big step toward separating TwistyObject metadata.