Adding @Beta to TunnelService and associated API classes

Change-Id: I58ea6b5ef63ed9a6f7c45a3f27ed08fc70683acd
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/IpTunnelEndPoint.java b/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/IpTunnelEndPoint.java
index a9278fc..7c5247a 100644
--- a/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/IpTunnelEndPoint.java
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/IpTunnelEndPoint.java
@@ -18,12 +18,15 @@
 
 import java.util.Objects;
 
+import com.google.common.annotations.Beta;
 import org.onlab.packet.IpAddress;
 
 import com.google.common.base.MoreObjects;
+
 /**
  * Represent for a tunnel point using ip address.
  */
+@Beta
 public final class IpTunnelEndPoint implements TunnelEndPoint {
 
     private final IpAddress ip;