Allow different date format

[MarcAndreJean]

Describe the solution you'd like
Allow different format like ISO 8601 extended format : YYYY-MM-DD
Or DD-MM-YYYY
Maybe adding a format prop to DatePickerInput.

[iM-GeeKy]

PRs are welcome!

[MarcAndreJean]

I'll try!

[iM-GeeKy]

I'm going to close this, but if you get around to creating a PR just let me know and I'll take a look!