Add Country Flag

[ggn-sh]

A valuable improvement would be adding country flags as part of the dataset.

[nnjeim]

@ggn-sh thank you for your input. i will try to implement in the coming version

[kminek]

I am not 100% sure it should be handled within the package. Its purely presentational layer. You have like dozens flags packages on https://www.npmjs.com/ where you just supply country ISO2 with like square or rectangular flags in different formats.