add mult axis on same side tests back from jread df commits deleting them
add mult axis on same side tests back from jread df commits deleting them

jread-usgs/gsplot,jread-usgs/gsplot,ldecicco-USGS/gsplot,lindsaycarr/gsplot,ldecicco-USGS/gsplot,dpattermann-usgs/gsplot,USGS-R/gsplot,dpattermann-usgs/gsplot,lindsaycarr/gsplot