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

scripts/ci_run_entry_points.sh

 #!/bin/bash
 
-find -L $CATKIN_WORKSPACE -name ci_entry_script.bash -exec bash -c 'echo Running entry script from $(basename $(dirname {})) ; {} ' \;
+echo Looking up and executing user entry scripts in: $1
+
+find -L $1 -name ci_entry_script.bash -exec bash -c 'echo Running entry script from $(basename $(dirname {})) ; {} ' \;
 
 echo Finalized running the user entry scripts