Implement LogModel and an Admin Route

[Shubham Palriwala]

THe Log Mongo model should have the following fields:

• username
• roomNo
• QNo
• Powerup Name (if used)
• Hint (if used)
• Effective Score
• submittedAnswer
• isAnswerClose? Is it correct
• timestamp: true

A Get route to fetch this DB and have query params for all the fields. The route should only be accessbile if a REQ.QUERY..IEEE_TOKEN Is provided