add a leaderboard when finished the game

[MelanX]

This PR adds a kind of leaderboard once a team won the game. This was a highly requested feature for this mod. It respects the previous places to give a proper result. Example:

1. Team Black - 5 Tasks
2. Team Yellow - 4 Tasks
3. Team Magenta - 4 Tasks
4. Team White - 2 Tasks

As you can see, there is two times place 2 and no place 3 because one of the two place 2 teams blocks place 3. I hope you understand the intention.

And yes, I tested it with my friends:

[noeppi-noeppi]

The leaderboard should be a game setting that is off by default as it makes no sense in the default win mode.

[MelanX]

Done