v1.0-beta

This is a beta and release candidate for Pixeus. Some large refactors of the code were made:

• It now uses ZSMKit. This fixed all of the sound issues and it just a much better library.
• There are new sfx
• Pixeus now has a shield that can deflect 1 projectile. It recharges when you find energy.
• Overall difficultly has been lowered. The game is easier and more fun now.
• Lots of bug and memory issues have been resolved.
• The game now has some code in Banked RAM to free up memory