feat: expose slider.updateOptions() to be able to update ranges
feat: expose slider.updateOptions() to be able to update ranges

I am not sure it is completely ok, especially with `pips` feature that
I do not use.

But it does work well with updating ranges and other options at any
time.

Here's what can be updated:

- margin
- limit
- step
- range
- animate

leongersen/noUiSlider,leongersen/noUiSlider,leongersen/noUiSlider,leongersen/noUiSlider