add an `as/use` attribute for custom `input`

[moimikey]

Describe the solution you'd like

With styled-components, I can't exactly share the styles effectively on .react-tags__search-input. It would be helpful to pass my own custom input component.

Describe alternatives you've considered

Copying the styled-component styles to override .react-tags__search-input to look identical

Additional context

n/a

[i-like-robots]

If you only need to target the <input /> element does the existing inputAttributes prop meet your needs?