add use hardware time option

orbbec_camera/launch/gemini2.launch.py

@@ -82,6 +82,7 @@ def generate_launch_description():
         DeclareLaunchArgument('trigger_out_enabled', default_value='false'),
         DeclareLaunchArgument('enable_frame_sync', default_value='true'),
         DeclareLaunchArgument('ordered_pc', default_value='false'),
+        DeclareLaunchArgument('use_hardware_time', default_value='false'),
     ]
 
     # Node configuration
@@ -132,4 +133,4 @@ def generate_launch_description():
                 )
             ]
         )
-        return ld
+        return ld