python: Improve constants module.
* lang/python/gpg/constants/__init__.py: Import all modules below 'constants/'. Interface hygiene: delete 'util'. * lang/python/gpg/constants/data/encoding.py: Delete 'util'. * lang/python/gpg/constants/event.py: Likewise. * lang/python/gpg/constants/import.py: Likewise. * lang/python/gpg/constants/keylist/mode.py: Likewise. * lang/python/gpg/constants/md.py: Likewise. * lang/python/gpg/constants/pk.py: Likewise. * lang/python/gpg/constants/protocol.py: Likewise. * lang/python/gpg/constants/sig/mode.py: Likewise. * lang/python/gpg/constants/sigsum.py: Likewise. * lang/python/gpg/constants/validity.py: Likewise. * lang/python/gpg/errors.py: Likewise.
- Signed-off-by: Justus Winter <justus@g10code.com>