wumpus-basic

Copperbox revision 1821.

Preliminary work implementing multi-line support. Rotation does not work properly for this revision so it will have to be substantially revised, however it merits check-pointing.

A previous version of  Wumpus-Basic had multi-line support but that was too complicated as it tried to simulate right and center alignment. Still there should be code in that revision to fix the problems in this one.