Tania's Game Mode updated to be more generic and allow different teams to fight

(Mode.java)
Updated to include a Team protected class inside which allows you to group Contenders together into a Team

(RoboGame.java)
Modified to run Tania's Game Mode, comment it and uncomment your Game Mode to test your Game Mode

(TaniaLastManStanding.java)
Refactored all redTeam and greenTeam to become just teams with name of "Red Team" and "Green Team"
team contenders are now a and a2 for the 2 contenders in A_Team, and b and b2 for contenders in B_Team
A_Team and B_Team are reusable, meaning once "Red Team" and "Green Team" are done fighting you can reuse
them for "Orange Team" and "Blue Team" to fight as A_Team and B_Team, allowing you to reuse a, a2, b, b2 contenders too
TODO comments added and updated as this is still a work in progress Commit/Update