[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/narze.c

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+#include "narze.h"

users/narze/narze.h

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+#pragma once
+
+#include "quantum.h"
+#include "eeconfig.h"
+#include "keymap_colemak.h"
+
+#ifdef COMBO_ENABLE
+#   include "superduper.h"
+#endif

users/narze/readme.md

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+# 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/>.

users/narze/rules.mk

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+SRC += narze.c
+
+ifeq ($(strip $(COMBO_ENABLE)), yes)
+    SRC += superduper.c
+endif

users/narze/superduper.c

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+#include "superduper.h"
+#include "eeconfig.h"
+#include "eeprom.h"
+#include "keymap_colemak.h"
+
+// SuperDuper
+
+#define SUPERDUPER_COMBO_COUNT 3
+#define EECONFIG_SUPERDUPER_INDEX (uint8_t *) 19
+
+enum process_combo_event {
+    CB_SUPERDUPER,
+};
+
+enum supported_layers {
+    _QWERTY,
+    _COLEMAK,
+    _QWOC
+};
+
+const uint16_t PROGMEM superduper_combos[SUPERDUPER_COMBO_COUNT][3] = {
+    [_QWERTY] = {KC_S, KC_D, COMBO_END},
+    [_COLEMAK] = {KC_R, KC_S, COMBO_END},
+    [_QWOC] = {CM_S, CM_D, COMBO_END},
+};
+
+combo_t key_combos[COMBO_COUNT] = {
+    [CB_SUPERDUPER] = COMBO_ACTION(superduper_combos[_QWERTY]),
+};
+
+volatile bool superduper_enabled = true;
+
+const uint16_t PROGMEM empty_combo[] = {COMBO_END};
+
+bool toggle_superduper_mode(void) {
+    superduper_enabled = !superduper_enabled;
+
+    if (superduper_enabled) {
+        set_superduper_key_combos();
+    } else {
+        clear_superduper_key_combos();
+    }
+
+    return superduper_enabled;
+}
+
+void set_superduper_key_combo_layer(uint16_t layer) {
+    key_combos[CB_SUPERDUPER].keys = superduper_combos[layer];
+    eeprom_update_byte(EECONFIG_SUPERDUPER_INDEX, layer);
+}
+
+void set_superduper_key_combos(void) {
+    uint8_t layer = eeprom_read_byte(EECONFIG_SUPERDUPER_INDEX);
+
+    switch (layer) {
+        case _QWERTY:
+        case _COLEMAK:
+        case _QWOC:
+            key_combos[CB_SUPERDUPER].keys = superduper_combos[layer];
+            break;
+    }
+}
+
+void clear_superduper_key_combos(void) {
+    key_combos[CB_SUPERDUPER].keys = empty_combo;
+}

users/narze/superduper.h

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+#pragma once
+#include "narze.h"
+
+bool toggle_superduper_mode(void);
+void set_superduper_key_combo_layer(uint16_t layer);
+void set_superduper_key_combos(void);
+void clear_superduper_key_combos(void);