implement avoid_ros_namespace_conventions QoS option (#113)
implement avoid_ros_namespace_conventions QoS option (#113)

* implement avoid_ros_namespace_conventions QoS option

* refactor logic

jwang11/rmw_fastrtps,jwang11/rmw_fastrtps,ros2/rmw_fastrtps,ros2/rmw_fastrtps,eProsima/ROS-RMW-Fast-RTPS-cpp