Moved Lifes.hx, Score.hx and Sounds.hx to another package.
Added some spaces in import statements for code readabillty.
Made the enemy move in random positions.
Made a small delay after the AI has chose a position, this is for giving the player a chance to shoot the AI.
Fixed small bug with cross-platforming and added Moving and none moving checkers.
Made y static so it can be accessed by other classes at any time.
Made the ship shoot every 1 second.
Made a new bullet type : "enemy_bullet".
Assigned hitbox, hp and collision to the object.
Moved checkCollide so it checks for every bullet type and added more collisions.