Proposal: Renaming a challenge

[reteps]

Requires #109. Fixes #107

Problem: ctfcli cannot support renames.
:

[challenges]
[[challenge-file.yml]]
deployment_details:
	ctfd_id:
	last_updated:

Solution: check a deployment_details section if exists and PATCH the id before doing a name search
Tradeoff: You can no longer copy the .ctf/config file and share it