Adding @Beta to Intent API classes and interfaces

Change-Id: I02a3c1a678cb4e75b5bba9a33117a9dccb6fc0f5
diff --git a/core/api/src/main/java/org/onosproject/net/intent/PointToPointIntent.java b/core/api/src/main/java/org/onosproject/net/intent/PointToPointIntent.java
index e737a5f..d3f7529 100644
--- a/core/api/src/main/java/org/onosproject/net/intent/PointToPointIntent.java
+++ b/core/api/src/main/java/org/onosproject/net/intent/PointToPointIntent.java
@@ -18,6 +18,7 @@
 import java.util.Collections;
 import java.util.List;
 
+import com.google.common.annotations.Beta;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.flow.TrafficSelector;
@@ -31,6 +32,7 @@
 /**
  * Abstraction of point-to-point connectivity.
  */
+@Beta
 public final class PointToPointIntent extends ConnectivityIntent {
 
     private final ConnectPoint ingressPoint;