Countryflag

Changelog:

- Added `getflag(country)` function that can be used within Python, alongside command-line. See [README.md ](https://github.com/Lendersmark/countryflag/blob/main/README.md)for more details.

Changelog:

- More verbose message when countryflag is invoked without arguments

This is the very first version of Countryflag.

- supports multiple country name classification schemes as input (ISO-2, ISO-3, ISO-numeric, official name, etc.)
- more than a country accepted as argument (must be separated by spaces: e.g. `countryflag sweden finland NL`)
- works from command line, platform-neutral