Chain from last

An iterator adaptor that chains the iterator with an iterator built from the last item.

Example

use chain_from_last::ChainFromLastExt;

let words: Vec<_> = "lorem ipsum dolor;sit;amet"
    .split(" ")
    .chain_from_last(|l| l.split(";"))
    .collect();

assert_eq!(words, vec!["lorem", "ipsum", "dolor", "sit", "amet"]);