Implemented dummy Neutron ML2 plugin handler

- Added REST handler for Neutron ML2 ONOS mech driver
- Made cordvtn ARP proxy to handle request for host, too
- Now cordvtn utilizes openstackSwitching only as a Neutron REST client

Change-Id: I6890b6651ddcb9d8cf33fb326e9f0eb721b536a5
diff --git a/apps/cordvtn/src/main/java/org/onosproject/cordvtn/rest/CordVtnWebApplication.java b/apps/cordvtn/src/main/java/org/onosproject/cordvtn/rest/CordVtnWebApplication.java
index 51dd3c6..fcb39a5 100644
--- a/apps/cordvtn/src/main/java/org/onosproject/cordvtn/rest/CordVtnWebApplication.java
+++ b/apps/cordvtn/src/main/java/org/onosproject/cordvtn/rest/CordVtnWebApplication.java
@@ -26,6 +26,9 @@
 public class CordVtnWebApplication extends AbstractWebApplication {
     @Override
     public Set<Class<?>> getClasses() {
-        return getClasses(ServiceDependencyWebResource.class);
+        return getClasses(ServiceDependencyWebResource.class,
+                          NeutronMl2NetworksWebResource.class,
+                          NeutronMl2SubnetsWebResource.class,
+                          NeutronMl2PortsWebResource.class);
     }
 }