Add analytics to arbitrator

The level parsing in arbitrator isn't really great at determining what level a particular game is scheduled at. What we should do is make it so that any level that comes up as "UNKNOWN" is sent to a database, which can then be queried by another javascript tool and we can add additional detection of levels.

Start by locating the level-parsing entry point in arbitrator and trace how games producing "UNKNOWN" are handled. Define the database destination and the interface for the other JavaScript tool to query it; this is done when unknown levels are recorded and can support additional detection.

Written by the indexing model from the issue text.