Async client for GitHub API v3 (application/vnd.github.v3+json)

Written for https://lib.rs. Supports only get() requests, because I didn't need more. PR's welcome.

• Uses async/await and std::futures.

• Supports streaming of GitHub's paged responses.

• Automatically waits for responses that GitHub processes asynchronously in the background.

• Automatically waits when hitting rate limit.

• It's tiny, around 200 lines of code.

It relies on serde for parsing responses, so bring your own data model.