Power Cell Lights Housing for Adafruit Neopixel Sticks

Not so much a remix as an add-on part for the PakRatJR proton pack! It fits into the powercell housing and can be screwed in using the screw holes in the inside of the powercell housing. This has screw holes to mount two [Adadfruit Neopixel Sticks](https://www.adafruit.com/product/1426) that are soldered together in sequence. This lines them up properly in the window for all 16 lights to be visible if you'd like to use them all, or you can code your neopixels to only light up the bottom 15 (or t