Add support for: - [ISO 639-2](https://en.wikipedia.org/wiki/ISO_639-2) and - [ISO 639-3](https://en.wikipedia.org/wiki/ISO_639-3). `Language.fromCode()` should accept all 3 ISO-639 codes as argument.
Add support for:
Language.fromCode()should accept all 3 ISO-639 codes as argument.