Personal user space and CRKBD R2G keymap (#15888)

* r2g folder groundwork

* Default mb keymap featuring mb logos

* Migrate Oled to keyboard folder

* Move rules configs to support config better

* update readmes

* Liscnece update

* Update config and fix issues caused by redef errs

* funciton name adjusts, define specific rgb modes

* move default oled font to postconfig

* update oled in line with develop merge

* fix return value

* Add some default rgb matrix defines

* del ugfx

* remove #include <stdio.h>

* create personal keymap for r2g

* reduce firmware size

* change keymap to follow physical layout

* remove RGBlight config lines to make both sides work (@Dasky on MechboardsUK Discord)

* strip down configuration, similar to crkbd/r2g:mb_via

* remove wrong oled code overwriting the r2g one

* broken code with RGB matrix (briks right side)

* remove high max brightness limit

* caps lock tap dance and RGB indicator for active caps lock

* fix caps lock led on right side

* add test macro

* remove latex macro which is too slow

* move caps lock tap dance to RALT and add space cadet shift

* switch CTL with ALT in first layer

* add tap dance for ESC/DEL

* space cadet tap dance with caps lock; shift works by needs a short pause

* add space cadet tap dance with caps lock on the right; shift works by needs a short pause and does not hold

* make more keys transparent

* enable auto shift and use logo on both oleds

* add user oled logo, slows down linking considerably

* oled name

* add arrow keys in usual configuration and add linear configuration to symbol layer

* add unicoede support

* add accents

* update to latest version

* add colemak dh layer

* report auto shift timeout

* define layer name shorcuts correctly

* disable VIA to enable more layers

* enable NKRO

* move some rules and unicode to user space

* move oled and tap dances to user space

* move tap dances fully out of keymap

* expand unicode map

* fix unicode code

* revert changes to r2g, make it equal to merged code

* revert changes to r2g, make it equal to merged code

* clang-format userspace

* clang-format config file

* Update keyboards/crkbd/keymaps/rmeli/keymap.c

* replace define with enum

* add licenses

1 files changed, 70 insertions, 0 deletions

diff --git a/users/rmeli/keyrecords/tap_dances.h b/users/rmeli/keyrecords/tap_dances.h
new file mode 100644
index 0000000000..fa749a17f4
--- /dev/null
+++ b/users/rmeli/keyrecords/tap_dances.h
@@ -0,0 +1,70 @@
+/*
+Copyright 2021-2022 Rocco Meli <@RMeli>
+
+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/>.
+*/
+
+#pragma once
+#include QMK_KEYBOARD_H
+
+// https://beta.docs.qmk.fm/using-qmk/software-features/feature_tap_dance#example-4-quad-function-tap-dance-id-example-4
+
+// + ---------- +
+// + TAP DANCES |
+// + ---------- +
+
+// Tap dance enums
+enum {
+    TD_LSPO_CAPS,  // Tap once for (, hold once for LSFT, tap twice for CAPS
+    TD_RSPC_CAPS,  // Tap once for ), hold once for RSFT, tap twice for CAPS
+    TD_ESC_DEL,    // Tap once for KC_ESC, twice for KC_DEL
+};
+
+// Rename tap dances for keymap with shortcuts
+#define TD_LSPC TD(TD_LSPO_CAPS)
+#define TD_RSPC TD(TD_RSPC_CAPS)
+#define TD_ED TD(TD_ESC_DEL)
+
+// + ----------- +
+// + KEY PRESSES |
+// + ----------- +
+
+// Different types of key presses
+typedef enum {
+    TD_NONE,
+    TD_SINGLE_TAP,
+    TD_SINGLE_HOLD,
+    TD_DOUBLE_TAP,
+} td_state_t;
+
+// Key press state
+typedef struct {
+    bool       is_press_action;
+    td_state_t state;
+} td_tap_t;
+
+// + --------- +
+// + FUNCTIONS |
+// + --------- +
+
+// Tap dance for fast modifiers; favors being held over being tapped.
+td_state_t hold_cur_dance(qk_tap_dance_state_t *state);
+
+// Left Shift Parenthesis Open (LSPO) and Caps Lock (CAPS) on DOUBLE_TAP
+void LSPO_CAPS_finished(qk_tap_dance_state_t *state, void *user_data);
+void LSPO_CAPS_reset(qk_tap_dance_state_t *state, void *user_data);
+
+// Right Shift Parenthesis Close (RSPC) and Caps Lock (CAPS) on DOUBLE_TAP
+void RSPC_CAPS_finished(qk_tap_dance_state_t *state, void *user_data);
+void RSPC_CAPS_reset(qk_tap_dance_state_t *state, void *user_data);