gatt_free_attr_value_buffer() function

* Function gatt_free_hdl_buffer * Description free a handle buffer * Returns None

* Function gatt_remove_an_item_from_list * Description Remove an service handle range from the list * Returns BOOLEAN TRUE-if remove is successful

* Function gatt_add_an_item_to_list * Description add an service handle range to the list in decending * order of the start handle * Returns BOOLEAN TRUE-if add is successful

GATTS_INCLUDED == TRUE * Function gatt_sr_find_i_rcb_by_handle * Description The function searches for a service that owns a specific handle. * Returns 0 if not found. Otherwise index of th eservice.