Demo showing how to query metadata using the client

[dOrgJelli]

TODO:

• create new project in demos repo
• use the following pseudo-code to fetch the metadata and access data within it:

import { Web3ApiClient } from "@web3api/client-js";

const client = new Web3ApiClient();
const uri = "ens/some.wrapper.eth";

const metaManifest = await client.getManifest(
  uri, { type: "metadata" }
);

const icon = await client.getFile(uri, { path: metaManifest.icon });

NOTE: be sure to check the typings defined in @web3api/client-js to correct any mistakes in the above pseudo-code.