Added optional verbose logging mode and fixed relative imports
This MR also formats the logging output to ease tracing problems. E.g.
2021-06-21 15:46:36,076 - rabotnikobm.rules.get_floorspace - DEBUG - evaluating -5767
This MR also formats the logging output to ease tracing problems. E.g.
2021-06-21 15:46:36,076 - rabotnikobm.rules.get_floorspace - DEBUG - evaluating -5767