Added manager for name mappings.

This will be responsible for mappings of names between different sites
(i.e. BBR <—> Rotowire).
Enhanced logging

Now we know what the exception is.
Added flag for scraping yesterday's lineups.

This step is now optional.
Fixed error when name mapping is needed.

When there’s no match for the provided name, we were not recording the
remapped name, and later down the line using the original for the
lineup_manager.get_id_for_player_name() call, which returned None.