fix missing include in ITouchInputHandling
fix touch interfaces
fix touchscreen.xml
fix generic touch action handler
fix touch swipe detector
fix multi touch tap/hold recognition in generic touch input handler
fix touchscreen.xml
fix OnSingleTouch() with multiple pointers
[ios] - add unified gesture handler to ios xcode project
[touch] - support 2 finger swipeleft as an example in generic handler
[ios] - use generic touch handler
[ios] - add 2finger swipes for the other directions too and map to single finger swipe in the generic action handler (brings back navigation in the fullscreenslideshow)
[touch] - add a mapping for 2 finger swipeleft (Back) as it was before on ios because of lack of hw back button
[ios] - fix compile after rebase