added a state class to ball and paddle to control global states for each script, will be used by the power ups/downs.
Updated OnCollision code for Ball to improve behavuour with 2 contract points.
Removed Collider Dependency for Ball and Brick Drop scripts
removed need to access the camera from Brick Drop
removed legacy camera code from Ball
Fixed bug in new Ball Collision code where the ball was sticking to collider.
removed death coroutene from birkc controller by creating a script to despawn the partical system when it had finished.
fixed despawn bug in DarkHexxa, all pooled objects now safe despawn at the end of the frame.
implmented drops on brick death.
Fixed Problem with the collision groups where the paddle was not colliding with the camera boundary
fixed bug in paddle where it was sinking because of the ball impacts by a very small amount each time.
prototyped drop control system.