Support ISO 639-2/B - DEU works but not GER

[bastiW]

Support for ISO 639-2 would be awesome :)

As you can see in that list some codes vary.

Example Germany:

639-2/T: DEU // supported
639-2/B: GER // not supported

Current behavior

const countries = require('i18n-iso-countries');

console.log('DEU (639-2/T) => ' + countries.getName('DEU', 'en')); // Germany
console.log('GER (639-2/B) => ' + countries.getName('GER', 'de')); // undefined

Should result in:

const countries = require('i18n-iso-countries');

console.log('DEU (639-2/T) => ' + countries.getName('DEU', 'en')); // Germany
console.log('GER (639-2/B) => ' + countries.getName('GER', 'de')); // Germany

Stackbliz Demo