OTFont

Copperbox revision 466.

I've re-implemented the parsing with a 'random access' parse monad. Parser monads usually consume the input stream as they progress. The random access parse monad instead reads all the data into an array at the start, then changes the position as it parses (the position is the array index).

This seems an improvement on the previous parser which segmented the input byte string for each table, to give the effect of random access.