Patch #6 (Bugs and visuals)

I made a few changes to the project that I didn't get done in the original jam window.

I Hope you enjoy!

Added

- Paralax bagrounds to game scene

- New skybox

- Backgrounds to other windows

Fixed

- Player can now buy missile

- Player will no longer hit the sky collider (Hopefully)

- Text in the win screen will now display the current balance.