Preparation for moving units
Merge branch 'cecilia'

Conflicts:
	src/GameEngine/ArmyManager.java
	src/GameEngine/GameManager.java
Move units - part 1
Function proximityMapFindMin to help move units
Move units - Changing the target's amount
Move units almoste ready
Merge branch 'master' of github.com:clejeu03/TowerDefense
Handle towers' activations
Merge branch 'cecilia'
Towers can send missiles (cadency in test)
Towers can send missile in time
Creation of the Vector2D class to move missiles
Correction of the missile direction and now can impact it's target
Suppressing properly units and missiles
Few changes in missiles management
Abstract class Tower changed for evolutions
Creating all towers + forgot to add the Vector2D class to move missiles
Evolution tower possible part Engine
New order EvolveTowerOrder
New order AmountUnitOrder