NeoPixel ring and toggle switch panel

This panel holds a [24 NeoPixel ring](https://www.adafruit.com/product/1586) and [a large toggle switch with safety cover](https://www.amazon.com/gp/product/B000GTMUUI/ref=ppx_yo_dt_b_asin_title_o02_s01?ie=UTF8&psc=1). These serve as a status indicator and printer power switch / emergency stop on my printer enclosure.

Wire it up how you like. I'm using a 74HCT08 as a level shifter for the NeoPixels. The switch interrupts the control signal for the printer's power relay. That way Octoprint can control power, but only if the switch is on.

The panel includes countersunk holes for M3 socket head screws, which attach to right-angle brackets (using nuts). A printable bracket is included. The large hole on the bracket is sized for a #8 wood screw.