Forget role queue, forced 2-2-2 and other role locks

[GreyFalcon-11737]

@Jessicka-1960

Putting Mei in Tank role doesn’t stop you from having a bad tank pairing, it almost encourages it.

Where do you put Brig?

What do you do with WidowAnas? DPS Moiras?

1. You make a 6Flex queue to siphon off the uncooperative players, from the cooperative play experience.
2. You make a system that allows teammates to trade Heroes+Roles. (I.e. Trade that DPS-only Ana from your Flex spot).
3. It’s you are already in the Flex Role, then just go Healer without trading Roles, because “Flex”. (Ditto for Tanks that won’t Tank).