Consider implementing CESU-8 (external library available)

[emk]

I saw that you had the evil encoding CESU-8 on one of your TODO lists. If it helps, I've taken a stab at a small, standalone encoding library which converts between UTF-8 and CESU-8:

https://crates.io/crates/cesu8

Is there any way to make a library like this compatible with rust-encoding without depending on anything more than a few core types? Thank you as always for your thoughts!