Asynchronous HTTP client.

This crate provides a simple HTTP client and is built on top of async-std.

Example:

```rs async_fetch::{Method, Request};

// request let mut req = Request::parseurl("https://domain.com").unwrap(); req.setmethod(Method::Post); // response let mut res = req.send().await?; let data = res.recv().await.unwrap(); ```

Todo: