Gamesetup - balance teams using lobby ratings

[elexis]

In order to have a good game, the teams need to be balanced so that the players of all teams have nearly equal skill. For this task, the player's skill can be assumed to be reflected by the rating from the lobby.

There should be a button in the gamesetup that when pressed, automatically finds a permutation with a nearly minimalistic rating difference between the teams.

The button should typically give a different permutation everytime it is pressed, to provide different choices.

In order to implement this, the players rating must be sent individually when joining from the lobby and not as a part of the playername.

[Imarok]

Move tickets to Game Setup as UI & Simulation got some sub components.