AI can attack with new format

PlayerContorller
- canAct variable set to true
- buttonListener call commented out for testing

EnemyAI
- sets currentInput to "A"
AI can move and attack - limited

PlayerController
ButtonListener
- changed last else statement to else if not an AI
ButtonRegistration
- returned buttonListener call, no longer commented out

EnemyAI
- now constantly moves forward
- attacks when player is within range