Compass-interface

-------------

Moved ``compass_people.cast`` to ``utility``.

Added return type hints to some functions in ``compass_people``.

-------------

Moved training parsing from ``CompassPeople`` to ``CompassPeopleScraper``.

-------------

Moved roles parsing from ``CompassPeople`` to ``CompassPeopleScraper``.

-------------

Moved permit parsing from ``CompassPeople`` to ``CompassPeopleScraper``.

-------------

Added David Breakwell's ``compassread2.php`` recipe.

Fix requirements file to use Python 3.8.

Added role data properties (``CompassLogon.current_role``,
``CompassLogon.roles_dict``).

-------------

Added ``cast`` function to coerce types.