wumpus-basic

Copperbox revision 2210.

First work overloading bindQuery. I've made a new notation for arity 1 and arity 2 cases - unfortunately the current classes are quite different. I'll see if I can revise the definition of the arity 1 case so it is in line with arity 2. The code that uses the new overloaded combinators in DrawingPrimtives is a lot more pleasant.