Formbot tool hangers

These tool hangers will clip snugly into either end of the top of the printer frame, and were designed to organize tools I commonly keep near my 3d printer. They should fit other printer models that use a similar frame as well.

The left hanger has room for a roll of tape, and a build scraping tool.

The right hanger currently has room for the following:
* Caliper
* Needle Nose Pliers
* Phillips Screwdriver
* Small Flathead Screwdriver
* Sharpie
* Allen wrench
* Scissors
* Mini Flashlight
* Slurry Brush