allow 2D eigen matrix as an input parameter
allow 2D eigen matrix as an input parameter

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