Added new DockWidget signals to DockWidget.sip

Author: githubuser0xFFFF

sip/DockWidget.sip

@@ -97,6 +97,8 @@ signals:
 	void closed();
 	void titleChanged(const QString& Title);
 	void topLevelChanged(bool topLevel);
+	void visibilityChanged(bool visible);
+    void featuresChanged(ads::CDockWidget::DockWidgetFeatures features);
 };
 
 };