Added findcclass, findnotcclass, tests. Added iscclass tests. Fixed iscclass to pass tests.

Added iscclass tests. Fixed iscclass to pass tests. 

Note, Character.getType does not return a bitfield so I changed several CCLASS cases to use char comparison. Chars 0-31 all return Character.CONTROL which isn't very helpful.
Added findcclass, findnotcclass and tests.