iOS native feel for scrolling

Right now, the style hint entries for each platform are hardcoded into q*integration, e.g. it is
https://github.com/qt/qtbase/blob/dev/src/plugins/platforms/ios/qiosintegration.mm#L232
for iOS.

A user is not satisfied with the default values, and asking for either more native behavior, or a global setter for those entries of style hint (flickDeceleration, etc). They are not happy with the current per-component setter, i.e. the properties of Flickable.

The user considers the current behavior to be less optimal. Here is a screen recording (too large to be attached, link available until Mar. 31st):
https://filesender.qt.io/?s=download&token=6b578ad3-e6e1-4b03-91e6-d6306371af28
See how native browser Safari and Quick Flickable is scrolled. Native browser has much larger momentum (less deceleration).