Replace uses of deprecated Eclipse APIs that were removed in Rodin 3.9

de.bmotionstudio.gef.editor/META-INF/MANIFEST.MF

...c/de/bmotionstudio/gef/editor/edit/IntEditingSupport.java

...motionstudio/gef/editor/edit/PredicateEditingSupport.java

.../de/bmotionstudio/gef/editor/edit/TextEditingSupport.java

.../de/bmotionstudio/gef/editor/edit/TypeEditingSupport.java

...udio/gef/editor/observer/wizard/WizardColumnObserver.java

...tor/observer/wizard/WizardObserverCSwitchCoordinates.java

...rver/wizard/WizardObserverListenOperationByPredicate.java

...ef/editor/observer/wizard/WizardObserverSetAttribute.java

...tor/observer/wizard/WizardObserverSimpleValueDisplay.java

...itor/observer/wizard/WizardObserverSwitchCoordinates.java

...gef/editor/observer/wizard/WizardObserverSwitchImage.java

...tudio/gef/editor/observer/wizard/WizardTableObserver.java

...io/gef/editor/scheduler/wizard/SchedulerObjectDialog.java

...r/scheduler/wizard/WizardExecuteOperationByPredicate.java

...eduler/wizard/WizardExecuteOperationByPredicateMulti.java

...o/gef/editor/scheduler/wizard/WizardExecuteScheduler.java