Fixed headlights/src/headlights.cpp to get rid of the compile-time bug. I forgot to dereference a pointer in the message subscriber that subscribes to set_headlights.
Created ROS skeleton for Headlights node. Currently has functionality for getting headlights set via a message and setting some variables to the message contents, but doesn't write to hardware. Also does not include code in libscout to support headlights yet....