Revamp logs and improve back-end searching

[JustinR17]

PR drastically changes the logs stored to reduce the payload and cardinality. Also updates the readme.

Brief outline of changes:

• Adds new schedule log level for RT/MD engine thread execution timings
• Reduces process_game log sizes by omitting expected logs (ex. Found player in team)
• Removes a lot of unnecessary logs for process_new_games and clotbetlogs
• Improve searching and str fields for multiple models
• Use TournamentType enum instead of manually typing string

TODO

• Need to determine which logs are worth keeping past 3 days
• Investigate which models are taking up the most space
• Investigate additional indices that should be used (and if this is worth the storage cost)