Update to drashna keymaps and userspace (#2876)

Update to drashna keymaps and userspace (#2876)

* Fix Unicode sample

* Add irony mark

* Remove unpretty keymaps

* Add QMK DFU and Conditional Music Mode

* Unicode fixes

* Unicode fixes

* Make layer indication more modular

* Finish removing Faux Click

* Cleanup of UserSpace and addition of 'update_tri_layer_state' function

* Add modifier status indicators to Orthodox

* Remove tri layer function

* Minor tweaks

* Remove the Orthodox's Indicator's reliance on layer_state_set

* Add custom EEPROM settings

* Make EEPROM config more efficient

* Viterbi Config

* Add Iris Keyboard layout and Userspace cleanup

* Iris keyboard tweaks

* Use Grave Escape on Iris

* Update Readmes