client/model/graph: position storing: store fixed per node
client/model/graph: position storing: store fixed per node

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