djson - Access Dynamic JSON in Rust

Example: ```rust let jsonstr = includestr!("../test.json");

let value: Value = djson::fromstr(jsonstr).unwrap(); let idxs = Index::parse("four[2].one").unwrap();

let res = djson::get_value(&value, &idxs); println!("{:#?}", res);

let res = djson::getvaluedyn(&value, &[&"four", &2, &"one"]); println!("{:#?}", res); ```