arti-hyper: Upgrade from an example to an "adaptation layer"

//! High-level layer for making http(s) requests the Tor network as a client.

//!

//! This can be used by applications which embed Arti,

//! and could also be used as an example of how to build on top of [`arti_client`].

//!

//! There is an example program [`hyper.rs`] which uses `arti-hyper`

//! to connect to Tor and make a single HTTP\[S] request.

//!

//! [`hyper.rs`]: <https://gitlab.torproject.org/tpo/core/arti/-/blob/main/crates/arti-hyper/examples/hyper.rs>

#![deny(missing_docs)]

#![warn(noop_method_call)]

`arti-bench`: A testing crate for running performance tests.

`arti-hyper`: An example crate, using `arti_client` as a backend for the

`arti-hyper`: Adaptation layer for using `arti_client` as a backend for the

`hyper` HTTP library.

## Design considerations, privacy considerations.