Add missing qualifiers for swri_roscpp unused parameter functions.
Add missing qualifiers for swri_roscpp unused parameter functions.

evenator/marti_common,elliotjo/marti_common,evenator/marti_common,swri-robotics/marti_common,evenator/marti_common,swri-robotics/marti_common,elliotjo/marti_common,elliotjo/marti_common,swri-robotics/marti_common,evenator/marti_common,elliotjo/marti_common,swri-robotics/marti_common