Localization support

[adzo]

Would it be interesting to support localization? The country Helper constructor can accept language (could be a string code for language, could be an enum provided by the library for the supported languages) and defaulted to English. First time here and would be happy to contribute a PR if this is an interesting feature to have.

[frankodoom]

@adzo you are welcome to contribute, this will be a nice feature to have.