Added some new-fangled features to bgenOutput.  Generate doc strings!

the former had their arguments reversed compared to all Apple's
routines (e.g. FSpOpenResFile()).

Also fixed the SoundMgr UserRoutine (Jack fixed it but put the fix
between #ifdef __MWERKS__ ... #endif :-( ).

NB eventually this module should disappear in favor of separate
modules per manager (e.g. Resources, Sound, Files, ...).

Renamed some things.
Added support for methods directly to bgenGenerator.py.
Completely reworked buffer, string and and structure types.

- Added (rather crummy) malloc debugger