Installed LDFetch #44

[Bertware]

LDFetch was installed. After merging and updating local code, don't forget to run yarn install!

Example usage:

import * as ldfetch from "ldfetch";

var fetch = new ldfetch();
var main = async function () {
    var response = await fetch.get('https://graph.irail.be/sncb/connections/');
    console.log(response.triples);
}
try {
    main();
} catch (e) {
    console.error(e);
}