Unify
This MR splits the importer into a script and a library.
From now on, the importer's code lives in debexpo/importer/importer.py while the script is still accessible at bin/debexpo_importer.py
The files debexpo/cronjobs/importuploads.py and debexpo/tests/importer/__init__.py has been updated to use the importer lib.
Tested with success:
- CI pipeline
- import with
debexpo_importer.py - import with
debexpo_worker.py
Relates to #5 (closed)