Accented characters (é,è,ç,....)

[gdo]

Hello,

To use accented characters, could you add the following code to the Key readKey() method in console.dart

} else if (codeUnit == 0xc3) {
  final next = stdin.readByteSync();
  key = Key.printable(utf8.decode([codeUnit, next]));

}

And this import
import 'dart:convert';

[bsutton]

I'm not at all familiar with accent characters.

If you are happy raise a PR with appropriate unit tests I would be happy to merge it.