Added swipe to turn page

This is the same implementation added by @kapilreddy in PR #78 with the addition of a call to `-
trackSwipeEventWithOptions:dampenAmountThresholdMin:max:usingHandler:`. I noticed in the original implementation a single swipe would scroll through 3 or 4 pages. The addition of this new call will limit one page turn per swipe.

Thanks @kapilreddy for doing all of the initial work!