Add plural score and groups

[diegoalzate]

overview

• cleans up the hardcoded filter for group, now the cycle endpoint will return all of the user's groups and the frontend can define which one to show, probably can filter by required
• adds a new boolean that can be used to show the score optionally on a question

breaking api changes

• userCanLeave -> required
• group is no longer returned in GET cycle, now it returns multiple groups

new api fields

• added showScore which will be handled by the backend but it can help the frontend know when to render a column