[Feature] Add command to update challenge status

[vpchung]

Describe The Problem To Be Solved

@mdsage1 :

i.e. initiating “Run Challenge” in synapse changes the status from Upcoming to Active and closing the challenge on synapse switches the status to Completed?

[vpchung]

I'm thinking for this, we could either:

• add a command called update-challenge-status(challenge_id, status), which will only update the Status annotation of the Synapse project

- OR -

• add 2 commands:
  • start-challenge(challenge_id) - updates the Status annotation to "Active" AND copies staging over to live, shares the evaluation queues with the participant team, etc.
  • close-challenge(challenge_id) - updates the Status annotation to "Completed" AND removes "Can submit" permissions from the evaluation queues, closes the participant team from new registrations, etc.

[vpchung]

^ First solution would be quicker to implement, but I think in the long-run, the second approach would prove to offer a more seamless experience for organizers.