Various tweaks to make it everything build and compile again under carbon. Mainly greylisted functions.

Window objects now also have an AutoDispose funcpointer (set for our windows, cleared for foreign windows). Needed mainly for Carbon (where we don't know about the windows belonging to our dialogs).
Fixed a few calls that return an ExistingWindow.

Made the core toolbox modules carbon-compatible using the new greylist feature of bgen: non-carbon methods are still included in non-carbon MacPython. The issue of backward compatibility of Python code is still open.
Macmodule and macosmodule have also been carbonified. Some functionality is still missing there.

Bgen now understands more constant definitions, but that means that a few which are not parseable in Python have to be blacklisted.

blacklisted, because they are not available in classic 68k programs,
and bgen doesn't have a way to put #ifdef/#endif in the generated
code. For now we only implement calls that work on all three models.

for blacklisting them.

Lib:toolbox folder.

- Added (by hand, through winedit.py) support for WindowPeek accessor
  functions that are currently declared as macros.

- Use Universal Headers as input
- Change addpack calls to not depend on Guido's disklayout
- Checkge testprograms to use new names for some functions