Expose CountryData

[Fabbok1x]

It'd be great if the CountryData was exposed to the created objected.
As currently there is functions as getConfig(), there should be a similar function e.g. "getCountries".
This will help make the application less prone to issues related to unknown/unidentified countries.

Either this: Or add handlers for unknown countries as currently the application will crash when providing an unknown country code.