[BUG #8163] Add support for multitouch gestures
* Removed experimental state
[BUG #8163] Add support for multitouch gestures
* Added track event (trackstart, track, trackend).
* Added delta and axis calculation to each track
* Added gesture detection for each separate pointer
[BUG #8163] Add support for multitouch gestures
* Update Carousel for using "track" gesture
[BUG #8163] Add support for multitouch gestures
* Update Picker for using "track" gesture
[BUG #8163] Add support for multitouch gestures
* Update ScrollComposite for using "track" gesture