htmlentity

html entity encode and decode.

How to use

```rust use htmlentity::entity::*;

let html = "

"; let htmlencoded = encode(html, Entities::SpecialChars, EncodeType::Named); asserteq!(html_encoded, "<div class='header'></div>");

let htmldecoded = decode(&htmlencoded); asserteq!(html, htmldecoded); ``` For more details, please see the document in crates.io