feat: allow modify animation configs

[gorhom]

as suggested here https://twitter.com/jkbace/status/1367990737183272961?s=20

Motivation

now you can modify animation configs per any public method from bottom sheet reference or hook method

// ref
bottomSheetRef.current.snapTo(2, 500, Easing.bounce(14))

// hook
const { snapTo } = useBottomSheet();
snapTo(2, 500, Easing.bounce(14))