Auto Balance needs to avoid putting the 2 highest players on the same team.

When trying to balance out games with some lower rated players, sometimes faf autobalance will do obviously unfair things, namely, putting the 2 highest players on the same team. It does this to try to balance out a very low player, despite the fact, imo, when the game gets balanced this way, the team with the 2 highest players wins more often than not.

## Intended changes
An effort should be made to force the 2 or 4 highest players evenly on opposite teams, before considering the lower players. This way the 1300 and 1000 and 800 and 300 won't stomp the 3 700's and a 500 virtually every time.

Maybe a duel balance system, where the higher players are balanced first, and then the lower players are considered afterwards.