Please add EventTypes to EditorGadget and ComboGadget

[CSAUER]

Please make following event types available on all gadgets:
- left click
- left double click
- right click
- right double click
- focus
- lost focus
- DragStart

On "input-able" gadgets I would expect following event types additionally:
- change
- submit (Return-key/selection/splitter drop)

This would make the event system much more flexible.

[Kazmirzak]

I do support that idea!

I want to delete a file in an ExplorerListGadget with the user pressing a Hot-Key-Button. Funny thing is how should I know if he is still IN there? (He could be in a neighbour gadget) I really need the Focus ones, and the rest seems smart, too.