Add script to record profiler data to a bag file.
Add script to record profiler data to a bag file.

This adds a convenience script that records all the profiler topics to
a bag file.  It also attempts to fetch the output of 'wstool info'
from the workspace and also records it to the bag file.

swri-robotics/swri_profiler,elliotjo/swri_profiler,swri-robotics/swri_profiler,elliotjo/swri_profiler,elliotjo/swri_profiler,swri-robotics/swri_profiler,elliotjo/swri_profiler,swri-robotics/swri_profiler