Publish simulated Gazebo model poses as vision_msgs/msg/Detection3DArray.

• gazebo_ros_logical_camera publishes model poses seen by a logical camera (SensorPlugin)
• gazebo_ros_detections publishes model poses relative to a model (ModelPlugin)
• gazebo_ros_object_list publishes model poses in a world (WorldPlugin)

For usage examples check test/example.world, or run the world in Gazebo:

gazebo --verbose -s libgazebo_ros_init.so -s libgazebo_ros_factory.so test/example.world