efl_ui_focus_manager: make logical_end work better

efl_ui_focus_manager: make logical_end work better

it turns out that we should also repsect logical elements that are
having a redirect_manager, since they are more at the "end" then a
potential regular node.

The user now needs to handle the logical_end call on this manager, or
handle at all what he wants to do with this information.

efl_ui_win now handles it in the way that it just focuses that logical
node, (which results in the redirect manager beeing set, then calling
again logical_end on that manager. Repeating this until we have finally
found a regular node that does fit out needs.