Fixed win conditions.
Fixed a bug where critical hits dealt 100 times more damage.
Fixed a bug where the first champion would go first.
Fixed a bug where if the two champions have same speed, first always move first.
Changed the turn order so that if speed is the same, one random goes first.
New Battle class to handle the combat.

Need to implement focus regen. Improve console display.

Signed-off-by: Aron Chan <meenyman95@gmail.com>