Added SDN-IP CLI command to show the BGP neighbors:
  onos:bgp-neighbors
OR
  onos:bgp-neighbors -n <NeighborID>
  onos:bgp-neighbors --neighbor <NeighborID>

Change-Id: I4e4185d9484384d9e3aa5304c897410b23a24238
diff --git a/apps/sdnip/src/main/java/org/onlab/onos/sdnip/SdnIp.java b/apps/sdnip/src/main/java/org/onlab/onos/sdnip/SdnIp.java
index 4abefa7..c54e3f4 100644
--- a/apps/sdnip/src/main/java/org/onlab/onos/sdnip/SdnIp.java
+++ b/apps/sdnip/src/main/java/org/onlab/onos/sdnip/SdnIp.java
@@ -30,6 +30,7 @@
 import org.onlab.onos.net.host.HostService;
 import org.onlab.onos.net.intent.IntentService;
 import org.onlab.onos.sdnip.bgp.BgpRouteEntry;
+import org.onlab.onos.sdnip.bgp.BgpSession;
 import org.onlab.onos.sdnip.bgp.BgpSessionManager;
 import org.onlab.onos.sdnip.config.SdnIpConfigReader;
 import org.slf4j.Logger;
@@ -97,6 +98,11 @@
     }
 
     @Override
+    public Collection<BgpSession> getBgpSessions() {
+        return bgpSessionManager.getBgpSessions();
+    }
+
+    @Override
     public Collection<BgpRouteEntry> getBgpRoutes() {
         return bgpSessionManager.getBgpRoutes();
     }