feat: handle LED indicators report

app/include/zmk/hid_indicators.h

@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2022 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#pragma once
+
+#include <zmk/endpoints_types.h>
+#include <zmk/hid.h>
+#include <zmk/hid_indicators_types.h>
+
+zmk_hid_indicators zmk_hid_indicators_get_current_profile(void);
+zmk_hid_indicators zmk_hid_indicators_get_profile(struct zmk_endpoint_instance endpoint);
+void zmk_hid_indicators_set_profile(zmk_hid_indicators indicators,
+                                    struct zmk_endpoint_instance endpoint);
+
+void zmk_hid_indicators_process_report(struct zmk_hid_led_report_body *report,
+                                       struct zmk_endpoint_instance endpoint);