feat(ble): add dtm configuration command in hci example

examples/bluetooth/nimble/hci/main/dtm_configuration_command.h

@@ -0,0 +1,13 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Unlicense OR CC0-1.0
+ */
+#ifndef __DTM_CONFIGURATION_COMMAND_H__
+#define __DTM_CONFIGURATION_COMMAND_H__
+#include <stdint.h>
+#include <stdbool.h>
+#include "esp_err.h"
+
+esp_err_t dtm_configuration_command_enable(void);
+#endif