Sort block, boundary, and nodeset names in peacock mesh viewer
Sort block, boundary, and nodeset names in peacock mesh viewer

closes #12010

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