New Weapons System! -v1.3

Yep, I've finally gotten round to do it.

With this update comes:

• A new modular weapons system 
  • Support for weapons to:
    • fire multiple shots at once
    • fire multiple times per shot (burst)
    • different types of projectiles with their own mechanics and behaviors
  • New default weapons:
    • Small cannon
    • Shotgun
    • Small raygun
    • ...
  • Projectile system:
    • for now, added bullets, lasers, and explosives, but will look into combining them
• With it, 7 (technically 6) new weapons to try out!

Coming up:

Also, gonna add some '?'s to indicate the (un)likelihood of implementation

• New projectiles:
  • rockets
  • seekers(??)
• Smarter AI (well... "smart" AI)
• Reconsider pace of the game(?)
• Weapons System could possibly become procedural(??)
  • Bosses drop weapons(???)
  • Chests that drop random weapons(???)
• New environments & maps(??)