Reduced the size of the tank to 50%
Merge branch 'GameConditions' into dev
Changed the size of the tank to 75% to the original size
Improve collision detection

In addition to intersection, collision loop checks if a shape contains
another shape.
Minor code merge
copy() reference of direction
Reuse of setDirection in constructor
Merge branch 'Collision' into dev
merge with Sound
Added sound and event for firing a weapon (only default and bounce)
Added sound for hiting an enemy tank and why am I in dev...?
merge with dev