touchcontrol: license.
Implement new TouchControlShapemod
FIx some issues with ShapeChanging; implement per-object TouchControlSquare and TouchControlMirror.
Make the ShapeChanging the default TouchControl during MODE_REPLACE.
Bugfixes for the ShapeChanging touch control.Still doesn't work but doesn't crash anymore :)
Float vertices - scratchbook
Abstract out the TouchControl stuff in preparation for its new type - TouchControlShapeChanging.