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/cli/src/main/java/org/onosproject/cli/net/DevicesListCommand.java b/cli/src/main/java/org/onosproject/cli/net/DevicesListCommand.java
index 6ac06ba..d47e019 100644
--- a/cli/src/main/java/org/onosproject/cli/net/DevicesListCommand.java
+++ b/cli/src/main/java/org/onosproject/cli/net/DevicesListCommand.java
@@ -41,7 +41,7 @@
 public class DevicesListCommand extends AbstractShellCommand {
 
     private static final String FMT =
-            "id=%s, available=%s, role=%s, type=%s, mfr=%s, hw=%s, sw=%s, serial=%s, driver=%s%s";
+            "id=%s, available=%s, local-status=%s, role=%s, type=%s, mfr=%s, hw=%s, sw=%s, serial=%s, driver=%s%s";
 
     private static final String FMT_SHORT =
             "id=%s, available=%s, role=%s, type=%s, driver=%s";
@@ -103,6 +103,7 @@
                       deviceService.getRole(device.id()), device.type(), driver);
             } else {
                 print(FMT, device.id(), deviceService.isAvailable(device.id()),
+                      deviceService.localStatus(device.id()),
                       deviceService.getRole(device.id()), device.type(),
                       device.manufacturer(), device.hwVersion(), device.swVersion(),
                       device.serialNumber(), driver,