Gdk Events additions
Gdk Events additions

-added representation of GdkEventType
-added representation of GdkEventButton
-added Type() method to EventKey to get its EventType
yamnikov-oleg/gotk3,LittleBuster/gotk3,pekim/gotk3,gotk3/gotk3,andre-hub/gotk3,andre-hub/gotk3,pekim/gotk3,andre-hub/gotk3,yamnikov-oleg/gotk3,gotk3/gotk3,pekim/gotk3,LittleBuster/gotk3,yamnikov-oleg/gotk3