/// This is the Celtic part of the ISO/IEC 8859 encoding family. This encoding
/// is also known as Latin 8.
///
/// [Index visualization](https://encoding.spec.whatwg.org/iso-8859-14.html),
/// [Visualization of BMP coverage](https://encoding.spec.whatwg.org/iso-8859-14-bmp.html)
///
/// The Windows code page number for this encoding is 28604, but kernel32.dll
/// does not support this encoding.