Input styling

[dani9417]

Solves #27

Hi @alanclarke!

I added an 'inputClassname' and 'disabled' prop to your component. Also added a 'styles' prop, to add custom styles to both wrapper and input.

The styles is an object, it should work like this:

const styles = {wrapper: {...}, input: {...}}
const timeInput = <TimeInput disabled={false} inputClassname="form-control" styles={styles} />

Could you please review this?

[apuntovanini]

@alanclarke any plans to merge this into master? tnx!