gtkgestureswipe: Handle touchpad swipe events
gtkgestureswipe: Handle touchpad swipe events

These will only trigger the gesture if it's been created with
the same GtkGesture::n-points than n_fingers in the event.

jigpu/gtk,grubersjoe/adwaita,grubersjoe/adwaita,grubersjoe/adwaita,davidgumberg/gtk,chergert/gtk,davidgumberg/gtk,alexlarsson/gtk,alexlarsson/gtk,jigpu/gtk,chergert/gtk,alexlarsson/gtk,davidgumberg/gtk,jadahl/gtk,davidgumberg/gtk,alexlarsson/gtk,chergert/gtk,jadahl/gtk,alexlarsson/gtk,chergert/gtk,grubersjoe/adwaita,grubersjoe/adwaita,chergert/gtk,jigpu/gtk,alexlarsson/gtk,jadahl/gtk,jigpu/gtk,jigpu/gtk,grubersjoe/adwaita,jadahl/gtk,davidgumberg/gtk,jadahl/gtk,jigpu/gtk,chergert/gtk,grubersjoe/adwaita,jigpu/gtk,grubersjoe/adwaita,chergert/gtk,chergert/gtk,jigpu/gtk,jadahl/gtk,davidgumberg/gtk,alexlarsson/gtk,jadahl/gtk,jadahl/gtk,davidgumberg/gtk,davidgumberg/gtk,alexlarsson/gtk