Add set_status_at_node functions to raster grid.
Add set_status_at_node functions to raster grid.

RondaStrauch/landlab,landlab/landlab,cmshobe/landlab,ManuSchmi88/landlab,amandersillinois/landlab,ManuSchmi88/landlab,amandersillinois/landlab,SiccarPoint/landlab,RondaStrauch/landlab,RondaStrauch/landlab,laijingtao/landlab,SiccarPoint/landlab,Carralex/landlab,Carralex/landlab,Carralex/landlab,landlab/landlab,laijingtao/landlab,ManuSchmi88/landlab,csherwood-usgs/landlab,landlab/landlab,cmshobe/landlab,csherwood-usgs/landlab,cmshobe/landlab