Adding @Beta to LabelResourceService and other interfaces in API package

Change-Id: Ic959bd78e60be6995648649db69556e543a25325
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/resource/label/LabelResourceRequest.java b/incubator/api/src/main/java/org/onosproject/incubator/net/resource/label/LabelResourceRequest.java
index 7e429e2..d81d7aa 100644
--- a/incubator/api/src/main/java/org/onosproject/incubator/net/resource/label/LabelResourceRequest.java
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/resource/label/LabelResourceRequest.java
@@ -3,13 +3,16 @@
 import java.util.Collection;
 import java.util.Objects;
 
+import com.google.common.annotations.Beta;
 import org.onosproject.net.DeviceId;
 
 import com.google.common.base.MoreObjects;
 import com.google.common.collect.ImmutableSet;
+
 /**
  * Represents for a label request.
  */
+@Beta
 public class LabelResourceRequest {
 
     private final DeviceId deviceId;