[Keymap] add chriskopher keymap for usb-usb converter (#8856)

keyboards/converter/usb_usb/keymaps/chriskopher/shared_enum.h

@@ -0,0 +1,36 @@
+/* Copyright 2020 Christopher Ko <chriskopher@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
+
+enum keyboard_layer {
+    // Base layers
+    _CKO,
+    _QWERTY,
+    // Intermediate layers
+    _SUPERDUPER,
+    _DEV,
+    // Adjust layer at the end
+    _ADJUST
+};
+
+enum tap_dance_key_event {
+    // Extended space cadet shift tap dance
+    ESPC_L,
+    ESPC_R,
+    // Semicolon-Colon tap dance
+    SCLN_CLN
+};