Split Duet Panels

# Summary

This is separate Duet front and power input panels for 2020 Kossels or other printers with similar dual-2020 frames. This set of panels has openings or connectors for a mains inlet connector, fuse, on/off switch, light switch, and the Duet electronics. It includes access holes for the Reset and Erase buttons of the Duet 0.8.5 or the Duet WiFi board, along with a thin section for the LEDs on those versions of the Duet to shine through. It can also be used with a Duet 0.6 board. Pick the version with WiFi or the version with Ethernet depending on which Duet you have, along with the separate power inlet panel.

This version differs from the original dc42 design in two major ways, plus a few more minor ways:

- I've added a hole for a circular switch that I use to control an LED light strip on my printer.
- The original design put everything on one panel, but I've split this into two panels, one for the Duet and light switch and the other for the power inlet, power switch