Add Group API fields for honour points and mission time

[j-brkr]

The api at /api/match/group only includes 4 columns: group_id, team_id, team_name, total_points

The leaderboard requires total honour points and total regular points to be seperate columns and there to also be a mission time column

[github-actions]

Branch issue-42-Add_Group_API_fields_for_honour_po created!

[j-brkr]

I am also using this branch and issue to integrate the backend for the leaderboard

[j-brkr]

I have added // TODO comments to client/src/components/ui/Leaderboard/List.tsx for the remaining things that need to be done to integrate the backend on the leaderboard

[allyharrison]

I merged @j-brkr's partially finished work :)