Scroll view fixes (#1304)
Scroll view fixes (#1304)

* Reset velocity when ScrollView.scroll is set.

* Keep scroll position the same from the user's POV when content size changes

aidinabedi/playcanvas-engine,sereepap2029/playcanvas,MicroWorldwide/PlayCanvas,playcanvas/engine,sereepap2029/playcanvas,sereepap2029/playcanvas,playcanvas/engine,MicroWorldwide/PlayCanvas,aidinabedi/playcanvas-engine