dots_breakout

Add two player mode and score, you get the score when you hit the ball

Upgrade project to 2019.3.0f6

Cleanup + added paddle screen constraint

Changing GridHashMap from SystemState component to normal component. To prevent a rather ugly exception. Need to find a way to clean up hash grid memory.

Removing Translation and Rotation components in favor of a Position2D which writes to LocalToWorld at the end of the frame