Added : HexMapInputSystem to handle the input of the mouse and share it along all other system.
EditorAppState start to become obsolete.
WIP - stable : AbilitySystem && VFXSystem
HexPositionComponent && RotationComponent merged.
All component implements ExtendedEntity to have the clone method. (and do stuff as before)
Better use of the inputManager.
WIP - Stable : AbilitySystem && VFXRenderSystem
HexProperties work again.