Add vote kick at champ select

We should be able to vote kick people from champ select (specifically for ranked). There is so much toxicity pregame that spills over into the actual game. Allowing players to vote kick members of their own team to avoid obvious losses instead of having to dodge people would be far more effective.

Players that ban other team mate's champions, try to micromanage everyone's picks pregame, etc, etc.

The guy trolling the team at :20 game time, is always the same guy who participated in the above activities. Typically that person will also report any number of people at the end of the game for "boosted" or something of that nature.

I shouldn't have to dodge a game when my pick is banned by my team, or someone picks soraka jungle, or urgot adc or something... If we all agree we don't want to play with that guy... it shouldn't be one of our jobs to take one for the team...