Handling KeyEvents for extension in case the extension needs it and a normal key event handling would interfer with the DesignPanel.cs keyhandling due to event bubbling prevention or such.
missing file
Addition to DesignPanel to be able to suppress default key action for objects
Merge branch 'WpfDesignerExtensionKeyHandler' of git://github.com/gumme/SharpDevelop into gumme-WpfDesignerExtensionKeyHandler

Conflicts:
	src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/DesignPanel.cs
	src/AddIns/DisplayBindings/WpfDesign/WpfDesign/Project/WpfDesign.csproj
Merge branch 'gumme-WpfDesignerExtensionKeyHandler'