Alpha 1.2 update

Alpha 1.2 changelog

Ball return speed changed from 1s to 0.6s
Ball left-right movement speed changed from 2 to 3
Adjusted ball and hoop collision.
Minor visual improvement.

New score multiplier added.
(Multiplier increases with scorestreak)
New overall statistic info added.
(At the end of the game the statistic show you all of your throws, succeed throws, and highest scorestreak)