Add Three Digit Country Codes to the `get_country` Function

[William-McGonagle]

Idea

Right now, the get_country function has a ton of countries with two-digit codes. The only problem is that I stopped after a certain point because there were other things to work on in the phone system. What you can help with is adding the rest of the country codes from https://countrycode.org/. The easiest way to do this is to sort by 'country code' by clicking that column and it will display all the three-digit codes there.

Todo

• Add the three-digit codes to the get_country function