fixed license headers II

directory-core/src/main/groovy/org/eclipse/thingweb/directory/rdf/RepositoryFactory.groovy

@@ -1,3 +1,17 @@
+/********************************************************************************
+ * Copyright (c) 2018 Contributors to the Eclipse Foundation
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0, or the W3C Software Notice and
+ * Document License (2015-05-13) which is available at
+ * https://www.w3.org/Consortium/Legal/2015/copyright-software-and-document.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR W3C-20150513
+ ********************************************************************************/
 package org.eclipse.thingweb.directory.rdf
 
 import groovy.transform.Immutable