rhizicore: add hasNode
rhizicore: add hasNode

cben/rhizi,tlevine/rhizi,Rhizi/rhizi,tlevine/rhizi,yuvadm/rhizi,tlevine/rhizi,Rhizi/rhizi,ozFri/rhizi,shlomif/rhizi,tlevine/rhizi,cben/rhizi,shlomif/rhizi,yuvadm/rhizi,ozFri/rhizi,yuvadm/rhizi,shlomif/rhizi,cben/rhizi,ozFri/rhizi,shlomif/rhizi,yuvadm/rhizi,Rhizi/rhizi,Rhizi/rhizi,ozFri/rhizi,cben/rhizi