Clickable dots

I would like an option to make each dot into a button that navigates to its respective slide. Does anyone else think this is a good option?

A simple approach could be to add a property called renderDot(index:number, isActive:boolean, onPress:function) that would provide a dot, like so:

const renderDot = (index, isActive, onPress) => {
return <Button onPress={onPress} ....
}
<Swiper renderDot={renderDot} />

Or, instead of adding a new property, dot and activeDot could be enhanced to support a function that returns a react element instead of just a react element. If @leecade is okay with it, I'll submit the PR

Start at the Swiper component and its existing dot and activeDot rendering, which the issue identifies as the relevant entry point; no file or test is specified. Confirm the intended API with maintainers, then verify that each rendered dot navigates to its corresponding slide and preserves active-state behavior.