Added missing copyright header

plugins/org.yakindu.sct.ui.editor/src/org/yakindu/sct/ui/editor/partitioning/ResourceUnloadingTool.java

@@ -1,3 +1,11 @@
+/*******************************************************************************
+ * Copyright (c) 2008 itemis AG (http://www.itemis.eu) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *******************************************************************************/
+
 package org.yakindu.sct.ui.editor.partitioning;
 
 import java.util.ArrayList;