Adding @Beta to Intent API classes and interfaces

Change-Id: I02a3c1a678cb4e75b5bba9a33117a9dccb6fc0f5
diff --git a/core/api/src/main/java/org/onosproject/net/intent/LinkCollectionIntent.java b/core/api/src/main/java/org/onosproject/net/intent/LinkCollectionIntent.java
index d26099e..d7953fd 100644
--- a/core/api/src/main/java/org/onosproject/net/intent/LinkCollectionIntent.java
+++ b/core/api/src/main/java/org/onosproject/net/intent/LinkCollectionIntent.java
@@ -18,6 +18,7 @@
 import java.util.List;
 import java.util.Set;
 
+import com.google.common.annotations.Beta;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.Link;
@@ -31,6 +32,7 @@
  * Abstraction of a connectivity intent that is implemented by a set of path
  * segments.
  */
+@Beta
 public final class LinkCollectionIntent extends ConnectivityIntent {
 
     private final Set<Link> links;