Lookup CI setup scripts in a argument provided path
In preparation for migration to the new colcon-ROS2-enabled industrial_ci
See https://github.com/ros-industrial/industrial_ci/pull/361#pullrequestreview-236934549
In preparation for migration to the new colcon-ROS2-enabled industrial_ci
See https://github.com/ros-industrial/industrial_ci/pull/361#pullrequestreview-236934549