This will provide differentiation between income that's regular and
stable (long-term contract) and that which is not, such as gigs,
presents, etc.
It presents the information separated in both graphs and reports.
Bring report up-to-date with sqlite3 database and yaml configuration
files.
Updates report command in runnable.py. Moves date arg parsing to utils
module
Report and graph now share an ArgumentParser with shared date options.
