Added d3 force graph to GUI2 topology

Change-Id: I6860472efaf51ea27fad74e630e687f0c6abad3d
diff --git a/web/gui2-fw-lib/projects/gui2-fw-lib/src/lib/svg/icon.service.ts b/web/gui2-fw-lib/projects/gui2-fw-lib/src/lib/svg/icon.service.ts
index 69392cf..6a900fb 100644
--- a/web/gui2-fw-lib/projects/gui2-fw-lib/src/lib/svg/icon.service.ts
+++ b/web/gui2-fw-lib/projects/gui2-fw-lib/src/lib/svg/icon.service.ts
@@ -41,6 +41,7 @@
     ['close', 'xClose'],
 
     ['m_ports', 'm_ports'],
+    ['m_switch', 'm_switch'],
 
     ['topo', 'topo'],
     ['bird', 'bird'],