1 conveyor belt

adds conveyors

done:

• find nearest neighbors
• added dynamic button creation on nearest neighbors
• conveyor movement
• smoked ciggerates

todo:

• eat pizza
• refactor code
  • make it an individual scene
  • clean up print statements
  • remove debugging options (requires ui)
• hook up with UI
• Make object move along outputs
• Add indicator for which machine leads to which output