[keymap] ninjonas userspace and keymaps for hotdox, lily58, & pinky3 (#6649)
* [keyboard] introducing ninjonas userspace & keymaps for hotdox, lily58, and pinky3
* [fix(#6649)] removed M_EPRM and used builtin EEP_RST keycode as-per review.
* [chore(#6649)] forgot to update keymap legend on lily58