New Boink Bouncers + Changes

Hey friends,

Spent the time cleaning up the code making it easier to add new Bouncers and new features in general. Proof of that concept are the new bouncers and changes added to the game!

• Added a new Bouncer The Split Bouncer
  
  • This bouncer splits the money object into two, goes on a short cooldown. Upgrades reduce cooldown time.
• Added a new Bouncer The Reshot Bouncer
  
  • This bouncer sends the money object through the cannon again, goes on a short cooldown. Upgrades reduce cooldown time.
    
• Numbers in the game now get short handed for easy reading (1K, 1M, 1B, etc.)
• New UI for build menu
• Removing bouncers refunds the price to build the bouncer (not the upgrades)
• Adds a setting that toggles showing short hand vs raw numbers
• Changes the way multi bouncers scale
• Changes the price scale of normal bouncers
• Changes the price scale of cannon starting amount