Add support for Disney's Glow With The Show ears.

Adds requirement of the GwtS library found here:
https://github.com/Materdaddy/GwtS-Arduino

Once that library is there, you can use this example sketch to
wirelessly receive your data from an nRF network and output to a
940nm-950nm IR LED (or LED array) to control the ears.
Add linuxy files to be ignored during development