Update sethBarberee Userspace (#12620)

* update for LTO and guard RGBLED_SPLIT

* Revert "update for LTO and guard RGBLED_SPLIT"

This reverts commit ce81177cbe330ae3e1e14c264dc0cb0946f08d70.

* Revert "Revert "update for LTO and guard RGBLED_SPLIT""

This reverts commit 67da0ce9f38777064ad094c1ecba7ce17a40994f.

* update iris keymap for keymap_kc removal and overhaul userspace

* add licenses

* fix tap_dance error when rgblight is disabled and update/clean iris/sinc maps

users/sethBarberee/tap_dance.h

@@ -0,0 +1,43 @@
+ /* Copyright 2021 SethBarberee <seth.barberee@gmail.com>
+  *
+  * 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 "sethBarberee.h"
+
+//Define a type for as many tap dance states as you need
+enum {
+    SINGLE_TAP = 1,
+    SINGLE_HOLD = 2,
+    DOUBLE_TAP = 3,
+    DOUBLE_HOLD = 4,
+    DOUBLE_SINGLE_TAP = 5, //send two single taps
+    TRIPLE_TAP = 6,
+    TRIPLE_HOLD = 7
+};
+
+
+enum {
+    TD_ECAP = 0,
+};
+
+#define KC_ECAP TD(TD_ECAP)
+
+typedef struct {
+    bool toggled; // store whether we have toggled caps lock
+#ifdef RGBLIGHT_ENABLE
+    int normal_mode;
+#endif // RGBLIGHT_ENABLE
+    int state;
+} tap;