[WIP] Add @Service tags to all commands and completers

Change-Id: I8d6ae6185ada30a92481ddb7b603af323656dc3a
diff --git a/apps/metrics/src/main/java/org/onosproject/metrics/topology/cli/TopologyEventsMetricsCommand.java b/apps/metrics/src/main/java/org/onosproject/metrics/topology/cli/TopologyEventsMetricsCommand.java
index b919fd9..39e0b7f 100644
--- a/apps/metrics/src/main/java/org/onosproject/metrics/topology/cli/TopologyEventsMetricsCommand.java
+++ b/apps/metrics/src/main/java/org/onosproject/metrics/topology/cli/TopologyEventsMetricsCommand.java
@@ -26,6 +26,7 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
 import org.onlab.metrics.EventMetric;
 import org.onosproject.cli.AbstractShellCommand;
 import org.onosproject.metrics.topology.TopologyMetricsService;
@@ -33,6 +34,7 @@
 /**
  * Command to show the topology events metrics.
  */
+@Service
 @Command(scope = "onos", name = "topology-events-metrics",
          description = "Lists topology events metrics")
 public class TopologyEventsMetricsCommand extends AbstractShellCommand {