Added wireless support; Added Lemokey L3; Added Keychron V1 Max

keyboards/keychron/common/wireless/keychron_wireless_common.h

@@ -0,0 +1,26 @@
+/* Copyright 2023 @ Keychron (https://www.keychron.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/>.
+ */
+
+#include "stdint.h"
+#ifdef VIA_ENABLE
+#    include "via.h"
+#endif
+#include "quantum_keycodes.h"
+
+void lkbt51_param_init(void);
+
+bool process_record_keychron_wireless(uint16_t keycode, keyrecord_t *record);
+void keychron_wireless_common_task(void);