Add alpha-3 listing to output

[bsweeney]

In addition to the alpha-2 listing for each country it would be nice to also have the alpha-3 listing.

This would be useful for drop-down lists using something like Select2 that allows for filtering.

[bsweeney]

Is this even possible with the CLDR or ICU sources? A quick perusal and I don't see alpha-3 at all. Would you have to separately query ISO 3166-1 to add that functionality?

[umpirsky]

@bsweeney Maybe there is a way. See symfony/symfony#8492.

As for this project, I am not sure if we will ever support alpha-3.
I will check if there is a way to fetch it, feel free to suggest if you find a way.

Currently, I am working on a new version which will drop CLDR support.

Thanks.

[EvanCarroll]

What is CLDR support, and what does it mean to support it? I can get it in the dumps with the fips data where applicable.

[umpirsky]

@EvanCarroll This is CLDR, we currently only fetch data from ICU.