Asteroids 2723 first update

Continuing development of my Asteroids clone! Bringing the colors more inline with the original Game boy.

This is quite a buggy release, spawning and display issues need fixed, the lasers are a bit hard to see, and you can easily die on spawning from pure bad luck. But wanted to get this out.

Had fun looking and fiddling with shaders, not sure if I'll keep it but it's so out of my comfort zone that I wanted to see what was out there.