[Keymap] Add narze userspace (#6652)

* Refactor & reimplement mod tap macros

* Reduce tapping term

* Update readme

* Add narze userspace

* Make use of narze userspace

* Extract Superduper mode

* Refactor Superduper mode

* (Ergodox Infinity) Prevent stuck modifiers

* Update ergodox_infinity/narze likewise

* Add warning for building Infinity with docker

* Fix include eeprom.h in superduper

* Try enabling superduper mode with combo for ergodox infinity

* Apply suggestions on #4546

* Convert to 4 spaces

* Map backlight step key

* Replace PLAY_NOTE_ARRAY

* Fix superduper toggle

* Re enable audio in planck rev4

* Use perform_space_cadet

* Remove superduper mod tap triggers

* Add readme for planck light firmware flashing command

* Remove unused layers

* Remove unused keycodes

* Add backlight toggle

* Remove unused songs & use DEFAULT_LAYER_SONGS

* Update readme

* Move includes to header file

users/narze/readme.md

@@ -0,0 +1,18 @@
+# TODO
+- [ ] Make SuperDuper mode fully-compatible in Windows by swapping GUI with Ctrl
+
+# LICENSE
+Copyright 2019 Manassarn Manoonchai manassarn@gmail.com @narze
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.