working on multiview support

de.bmotionstudio.gef.editor/plugin.xml

...rc/de/bmotionstudio/gef/editor/BMSPerspectiveFactory.java

.../src/de/bmotionstudio/gef/editor/BMotionEditorPlugin.java

...ditor/src/de/bmotionstudio/gef/editor/BMotionStartup.java

...rc/de/bmotionstudio/gef/editor/BMotionStudioLauncher.java

...rc/de/bmotionstudio/gef/editor/VisualizationViewPart.java

...o/gef/editor/controlpanel/AddVisualizationViewAction.java

...studio/gef/editor/controlpanel/CloseSimulationAction.java

...e/bmotionstudio/gef/editor/controlpanel/ControlPanel.java

...src/de/bmotionstudio/gef/editor/util/PerspectiveUtil.java