Function unescape_string 

pub fn unescape_string(string: &str) -> String

Returns a String with common escaped characters unescaped.

Example:

use ug_scraper::network::unescape_string;

let escaped_string: &str = "This\\t is a tab.";
let clean_string: String = unescape_string(escaped_string);
// Returns:
// "This     is a tab"