[ONOS-2715]implement MW icon extension for onos

1.add a new device type named "MW"

Change-Id: If9084426f380918416490c29f93d2caa75b0fb55

@@ -26,7 +26,8 @@ public interface Device extends Element {
      * Coarse classification of the type of the infrastructure device.
      * Coarse classification of the type of the infrastructure device.
      */
      */
     public enum Type {
     public enum Type {
-        SWITCH, ROUTER, ROADM, OTN, ROADM_OTN, FIREWALL, BALANCER, IPS, IDS, CONTROLLER, VIRTUAL, FIBER_SWITCH, OTHER
+        SWITCH, ROUTER, ROADM, OTN, ROADM_OTN, FIREWALL, BALANCER, IPS, IDS, CONTROLLER,
+        VIRTUAL, FIBER_SWITCH, MICROWAVE, OTHER
     }
     }
 
 
     /**
     /**