Converts an arena team size to the appropriate numeric arena team identifier
Signature:
teamID = ArenaTeam_GetTeamSizeID(teamSize)
Arguments:
teamSize- The size of the arena team (i.e. 2 for 2v2, 3 for 3v3, etc.) (number)
Returns:
teamID- The numeric identifier for the arena team of the given size (number, arenaTeamID)