Converted audio play functions to *_user (#349)

Converted audio play functions to *_user (#349)

* 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

* Usability tweaks

* TWEAE

* nightly

added extra kcs to keymap common

* turned on Plank audio

* Added backlight breathing to atomic

* reverted accidental merge

* Added music and audio toggles to Quantum.c

* Redid the audio callbacks

* Adjusted default planck layout to use the user tone naming

* tabs to spaces

* Rewrote the ALL recipe to allow for faster parallel make

* tabs to spaces

* Renamed custom event functions to be 'startup_user' and 'shutdown_user'. Also moved the prototypes around.

* Tweaked pvc atomic layout to work with the pvc planck.

* updates midi scale calling