Adding @Beta to Intent API classes and interfaces

Change-Id: I02a3c1a678cb4e75b5bba9a33117a9dccb6fc0f5
diff --git a/core/api/src/main/java/org/onosproject/net/intent/ConnectivityIntent.java b/core/api/src/main/java/org/onosproject/net/intent/ConnectivityIntent.java
index d69e85b..7caee3e 100644
--- a/core/api/src/main/java/org/onosproject/net/intent/ConnectivityIntent.java
+++ b/core/api/src/main/java/org/onosproject/net/intent/ConnectivityIntent.java
@@ -15,6 +15,7 @@
  */
 package org.onosproject.net.intent;
 
+import com.google.common.annotations.Beta;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 import org.onosproject.core.ApplicationId;
@@ -34,6 +35,7 @@
 /**
  * Abstraction of connectivity intent for traffic matching some criteria.
  */
+@Beta
 public abstract class ConnectivityIntent extends Intent {
 
     // TODO: other forms of intents should be considered for this family: