* Created arrow pad, a QMK based numpad designed for heavy text editing
* Enabled backlighting, numlock indicator, and forced nkro for arrowpad
* WIP Arrowpad 21
* WIP Arrowpad 21
* Combined Arrow Pad 21 and 24
* Combined Arrow Pad 21 and 24
* Removed 21 folder
* Updated personal layouts
* tweaked personal
* Nightly - Audio Cleanup
Refactored the LUTs. Abstracted some of the registers out of audio to
use more functional names. Split audio into audio and audio_pwm. WIP
* nightly - collapsed code
* Added check for note playing to LEDs