Adding to the 'devices' cli command an output that displays the local connectivity of a device.
For example, "id=of:0000000000000203, available=true, local-status=connected 18m7s ago, role=STANDBY, ..."
Also increasing the resolution of the TimeAgo utility.

Change-Id: Ie1b89bd193552e0edd38a9ca28c5ce99b1d27c19
diff --git a/protocols/netconf/ctl/src/test/java/org/onosproject/netconf/ctl/NetconfDeviceServiceMock.java b/protocols/netconf/ctl/src/test/java/org/onosproject/netconf/ctl/NetconfDeviceServiceMock.java
index a13636b..e008285 100644
--- a/protocols/netconf/ctl/src/test/java/org/onosproject/netconf/ctl/NetconfDeviceServiceMock.java
+++ b/protocols/netconf/ctl/src/test/java/org/onosproject/netconf/ctl/NetconfDeviceServiceMock.java
@@ -111,4 +111,9 @@
     public void removeListener(DeviceListener listener) {
 
     }
+
+    @Override
+    public String localStatus(DeviceId deviceId) {
+        return null;
+    }
 }
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