Add agent labeling.  Fixes #16040.
Add agent labeling.  Fixes #16040.

jessecarterMOOSE/moose,harterj/moose,dschwen/moose,sapitts/moose,nuclear-wizard/moose,lindsayad/moose,milljm/moose,nuclear-wizard/moose,sapitts/moose,bwspenc/moose,dschwen/moose,harterj/moose,idaholab/moose,harterj/moose,idaholab/moose,lindsayad/moose,harterj/moose,laagesen/moose,bwspenc/moose,bwspenc/moose,SudiptaBiswas/moose,nuclear-wizard/moose,SudiptaBiswas/moose,lindsayad/moose,andrsd/moose,lindsayad/moose,milljm/moose,andrsd/moose,andrsd/moose,laagesen/moose,bwspenc/moose,laagesen/moose,sapitts/moose,dschwen/moose,idaholab/moose,milljm/moose,idaholab/moose,laagesen/moose,jessecarterMOOSE/moose,andrsd/moose,jessecarterMOOSE/moose,jessecarterMOOSE/moose,lindsayad/moose,milljm/moose,laagesen/moose,nuclear-wizard/moose,SudiptaBiswas/moose,sapitts/moose,sapitts/moose,dschwen/moose,harterj/moose,idaholab/moose,SudiptaBiswas/moose,dschwen/moose,SudiptaBiswas/moose,andrsd/moose,jessecarterMOOSE/moose,bwspenc/moose,milljm/moose