Added d3 force graph to GUI2 topology

Change-Id: I6860472efaf51ea27fad74e630e687f0c6abad3d
diff --git a/web/gui2/src/main/webapp/app/view/topology/panel/summary/summary.component.css b/web/gui2/src/main/webapp/app/view/topology/panel/summary/summary.component.css
index 56f0cc9..894b815 100644
--- a/web/gui2/src/main/webapp/app/view/topology/panel/summary/summary.component.css
+++ b/web/gui2/src/main/webapp/app/view/topology/panel/summary/summary.component.css
@@ -20,6 +20,7 @@
  */
 #topo2-p-summary {
     padding: 16px;
+    top: 100px;
 }
 
 #topo2-p-summary  td.label {