Add ref to root input

[twclark0]

Can a ref be added to the root input element, that's accessible from <NiceInputPassword ref={someRef} ... />?

Either that or a new prop function that I can call to initiate a recheck against the validators? Currently, the validation only happens on the onchange of the input, however, I need the power to re-run that check depending on surrounding component state changes.

[renanborgez]

That sounds like a very interesting case.
I will try to find a time next week to add that, but if you want, feel free to open a PR as well.