Function encode 

pub fn encode(src: impl AsRef<[u8]>, mask: Bitmask) -> String

Encodes given slice using provided Bitmask

Example

let string = "Dragonborn, dragonborn, by his honor is sworn";
let encoded = percent_encoding_lite::encode(string, Bitmask::URI);
assert_eq!(&encoded, "Dragonborn,+dragonborn,+by+his+honor+is+sworn");