Clean up and tweaks of drashna keymaps and userspace (#2200)

Clean up and tweaks of drashna keymaps and userspace (#2200)

* Minor tweaks

	modified:   users/drashna/drashna.c

* Fix Workman ASCII art

* Add OSM for shifts

* Make Viterbi's 00 code consistant

* Minor Cleanup off Userspace

* Change Tapping Term on Ergodox

* Re-add EEPROM code

* Minor updates and tweaks

* Use QMK_H variables to make keymaps more universal

* Forgot 'break;' for covecube layer

* Tweak Viterbi files now that I have hands on

* Add secrets to Ergodox

* RGB tweaks to Viterbi

* Viterbi RGB layout tweeks

* Minor tweaks

* Add One Shot Mod tap toggle

* Add Faux Clicky to Viterbi, and disable controller's LEDs

* Minor tweaks

* Move D3 keycode defines into userspace

* Updated Userspace Readme