marker resource for annotating installable intent

To be used for ONOS-5827

Change-Id: I1faa76915aacae42ade98533525108d22511aa38
diff --git a/core/store/serializers/src/main/java/org/onosproject/store/serializers/KryoNamespaces.java b/core/store/serializers/src/main/java/org/onosproject/store/serializers/KryoNamespaces.java
index c0382b7..3480b41 100644
--- a/core/store/serializers/src/main/java/org/onosproject/store/serializers/KryoNamespaces.java
+++ b/core/store/serializers/src/main/java/org/onosproject/store/serializers/KryoNamespaces.java
@@ -74,6 +74,7 @@
 import org.onosproject.net.HostLocation;
 import org.onosproject.net.Link;
 import org.onosproject.net.LinkKey;
+import org.onosproject.net.MarkerResource;
 import org.onosproject.net.OchPort;
 import org.onosproject.net.OchSignal;
 import org.onosproject.net.OchSignalType;
@@ -561,6 +562,7 @@
             .register(ProtectedTransportEndpointDescription.class)
             .register(ProtectionEndpointIntent.class)
             .register(ProtectedTransportIntent.class)
+            .register(MarkerResource.class)
             .build("API");
 
     /**