Enhancements to apsw.ext about apsw

[rogerbinns]

1. It has to work with a connection in order to get column names via a new cursor tracer. I did notice you using cursors a lot in #492 even though they aren't necessary. What is special about the cursors you want to supply?
2. Will do.
3. Won't do. Have a look at the implementation - it is 3 lines printing traceback.TracebackException.format and Python 3.11 has a print method making this one line. You should be able to roll your own meeting your exact needs.

[scarlock]

1. Makes sense. Using cursors is an old habit from other database environments that are (thankfully) lost to the ages. I should probably break that habit.
2. Thanks.
3. No worries. Already rolled my own, just figured it would be a nice addition.

        traceback = io.StringIO()
        apsw.ext.print_augmented_traceback(*sys.exc_info(), file=traceback)
        logging.error(traceback.getvalue())