Implement Locking functionality based on Start and Stop Event status

[Epicnessism]

• Need to implement button in UI that sets a tournament or event to in-progress to prevent future seeding changes?
• Need to brainstorm how to handle admin overrides for a tournament?

[Epicnessism]

• Create post endpoint to update the start and stop state of the event_id.
• Could probably double this endpoint as the "Finished" state updater endpoint too
• When an event is in the locked state, nothing should be allowed to change....
• Implementing this change may become tedious or difficult?
• We would have to query on the set/event/tournament each time..... maybe only need to implement checks "one level up"? - So like updating a game should check the corresponding set, and updating a set should check the event, and updating the event should check the tournament status?
• Should check that the user session making the call is a valid tournament_admin
• try to leverage transactions if possible