Adding informations per teams in coop

[Foopyo]

On the website, you could display information about the team like:

• Time spend on the seed (probably the average time)
• Number of pickups cleared
• Number of deaths

[MunWolf]

Transferred this to the UI repo as that is where it is relevant

[timoschwarzer]

First one will actually come with the server timer next days. It shows the loading time per player while playing and the final time per player/world/universe once finished. For now, it marks a world as finished once all players finished and universes once all worlds in that universe finished. If there's demand, a timer option could be added to games to make it count the first finished player or the average time.