Sortainer divider

**UPDATE: Improved the model slightly so that sizes are a bit better. Previously it was (depending on your print settings) a bit too big and deformed the slot. Hence I also added a "slot-fixer.stl" that you can use to bend the slot back a bit.**

Dividers for Sortainers large and small.

The RAL colors for Festool/Tanos:
- RAL 7035 Light Grey
- RAL 6018 Yellow Green
- RAL 5004 Black Blue

You can use these to search for the correct colored filament.