RobotDefender V1.2 : The game is alive !

Addition and correction of bugs : 
-Turrets now block fire
-The ghost of the buildings is now adjusted and therefore allows for more efficient placement of the buildings.
-Cleaner HUD display
-HQ Life Display
 
Here are the modifications present in this patch:
-Turret firing distance reduced by 100: T1(600 --> 500) T2(700 --> 600)
-Wall life T2 reduced by 0.25 (3 --> 2.75)
-Robot speed increased by 0.25 for distance and body-to-body
-Boss life increased