[Oberon] extFocus in WMConponents.VisualComponent

[Dan Parnete]

Hello,

The extFocus is called in SetFocus but not in FocusLost. I think
    IF extFocus # NIL THEN extFocus(FALSE)  END
should be added in FocusLost.

extFocus is the only way to catch the focus events in controls that have 
FocusReceived and FocusLost not extend able (Editor is an example).

Cheers,
Dan Parnete