New tower's positionning : test of the territory okay
Replaced tower types int by the TowerTypes enum
AttackTower and SupportTower created and suppression of all the ancient towers class
TowerManager integrated into the GameManager
ArrayList replace HashMap in ArmyManager and TowerManager
Erratum : corrections on the master
Preparation merge
Merge branch 'aurelie'

Conflicts:
	src/View/AddTowerSprite.java
	src/View/SceneView.java
Add a gloabl Timer