[Keymap] ANAVI Macro Pad 2 add Google Meet keymap (#12449)

This keymap for ANAVI Macro Pad 2 contains a couple of shortcuts
for Google Meet:

- left key: turn on/off the microphone (mute button)
- right key: turn on/off the camera

Signed-off-by: Leon Anavi <leon@anavi.org>

keyboards/anavi/macropad2/keymaps/google-meet/keymap.c

@@ -0,0 +1,37 @@
+/* Copyright 2021 Leon Anavi <leon@anavi.org>
+ *
+ * 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/>.
+ */
+
+#include QMK_KEYBOARD_H
+
+/*
+ * The keymap contains the following shortcuts for Google Meet:
+ *
+ * Ctrl+D: Mute/unmute my audio
+ * Ctrl+E: Start/stop video
+ */
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT(
+    LCTL(KC_D),  LCTL(KC_E)
+  )
+};
+
+const uint16_t PROGMEM test_combo[] = {LCTL(KC_D), LCTL(KC_E), COMBO_END};
+combo_t key_combos[COMBO_COUNT] = {COMBO_ACTION(test_combo)};
+
+void process_combo_event(uint16_t combo_index, bool pressed) {
+	backlight_step();
+}

keyboards/anavi/macropad2/keymaps/google-meet/rules.mk

@@ -0,0 +1 @@
+COMBO_ENABLE = yes