recognizing gestures

[Johan Vos]

Hi,

At this moment, we can detect SWIPE gestures on Android since the quantum
toolkit has a SwipeGestureRecognizer. While everything seems to be in place
to add more implementations of GestureRecognizer, I don't see them. Are
there plans to add e.g. ZoomGestureRecognizer and RotateGestureRecognizer?

The alternative is that we detect the gestures using the Android API's in
the FXActivity launch class, send them through the native layer, and pick
them up the way we do with touchEvents in general.
That's ok, but I wanted to check first in order to avoid duplicate work.

- Johan