`categorize_data` is the new entry for data categorization and receives
a DBManager. Contains the categorizing logic.
Categorizer configuration now done solely from categories.yaml file.
Ancilliary database methods added to DBManager required for categorizing
transactions.
Adds categorize to command line options.
Removes obsolete restart options and method from runnable.py.
Fixes parse and categorize method, now take cmd line arguments and
`DBManager`.
Removes obsolete tools.py, all functions already rewritten in relevant
modules.
Updated categories.yaml with new keys.
Removed init and restart functions and writes to state file.
Moved create tables to init method of DBManager and launch from init
command.
Restart removed.
Rearranged order in runnable.py according to sections.
Only init command working since rest of runnable function not updated
at the moment.
