expose use_hardware_time in Femto Bolt nodelet launchfile

Related to:
- orbbec#27

launch/femto_bolt_nodelet.launch

@@ -60,6 +60,8 @@
     <arg name="trigger_out_delay_us" default="0"/>
     <arg name="trigger_out_enabled" default="false"/>
     <arg name="enable_frame_sync" default="false"/>
+    <arg name="use_hardware_time" default="false"/>
+
     <group ns="$(arg camera_name)">
         <node unless="$(arg external_manager)" pkg="nodelet" type="nodelet" name="$(arg manager)" args="manager"
               output="$(arg output)" required="$(arg required)" respawn="$(arg respawn)"/>
@@ -120,6 +122,7 @@
             <param name="trigger_out_delay_us" value="$(arg trigger_out_delay_us)"/>
             <param name="trigger_out_enabled" value="$(arg trigger_out_enabled)"/>
             <param name="enable_frame_sync" value="$(arg enable_frame_sync)"/>
+            <param name="use_hardware_time" value="$(arg use_hardware_time)"/>
             <remap from="/$(arg camera_name)/depth/color/points"
                    to="/$(arg camera_name)/depth_registered/points"/>
         </node>