IDE adapters support

plugins/org.jkiss.dbeaver.core.application/META-INF/MANIFEST.MF

@@ -20,6 +20,7 @@ Require-Bundle: org.jkiss.dbeaver.core,
  org.eclipse.ui.workbench.texteditor,
  org.eclipse.help,
  org.eclipse.core.filesystem,
+ org.eclipse.ui.ide,
  org.eclipse.e4.ui.css.core,
  org.eclipse.e4.ui.css.swt,
  org.eclipse.e4.ui.workbench.renderers.swt,

plugins/org.jkiss.dbeaver.core.application/src/org/jkiss/dbeaver/core/application/ApplicationWorkbenchAdvisor.java

@@ -24,6 +24,7 @@ import org.eclipse.ui.application.IWorkbenchConfigurer;
 import org.eclipse.ui.application.IWorkbenchWindowConfigurer;
 import org.eclipse.ui.application.WorkbenchAdvisor;
 import org.eclipse.ui.application.WorkbenchWindowAdvisor;
+import org.eclipse.ui.ide.IDE;
 import org.jkiss.dbeaver.DBeaverPreferences;
 import org.jkiss.dbeaver.core.DBeaverCore;
 import org.jkiss.dbeaver.registry.DataSourceDescriptor;
@@ -70,8 +71,12 @@ public class ApplicationWorkbenchAdvisor extends WorkbenchAdvisor
     public void initialize(IWorkbenchConfigurer configurer)
     {
         super.initialize(configurer);
+        // make sure we always save and restore workspace state
         configurer.setSaveAndRestore(true);
 
+        // register workspace IDE adapters
+        IDE.registerAdapters();
+
         TrayDialog.setDialogHelpAvailable(true);
     }