Add new constructor for specific ViewFactory

dockinginfonode/src/main/java/fr/soleil/docking/infonode/InfoNodeDockingManager.java

@@ -39,7 +39,11 @@ public class InfoNodeDockingManager extends ADockingManager {
     public InfoNodeDockingManager() {
         this(new InfoNodeViewFactory(), new PerspectiveFactory());
     }
-
+    
+    public InfoNodeDockingManager(IViewFactory viewFactory) {
+        this(viewFactory, new PerspectiveFactory());
+    }
+    
     protected InfoNodeDockingManager(IViewFactory viewFactory, IPerspectiveFactory perspectiveFactory) {
         super(viewFactory, perspectiveFactory);
     }