Win/lose, testing of new puck type

What's Changed

• Architecture restructure for dynamic Puck types by @Slenderpi in #1
• Win/loss detection is in. A simple UI screen pops up for it
• Controls are locked after the Player moves a Puck
• New Puck type, the OctaPuck. Change Puck type in game with P
  • Only one hardcoded level and a filled level are implemented
• Manual stepping keybind implemented
• Better object pooling. The pool dynamically grows and shrinks as necessary

Full Changelog: v1.2...v2.0