Ensure examples use re-exported rustls types outside of the tokio-rustls context

examples/client.rs

@@ -8,6 +8,7 @@ use std::sync::Arc;
 use argh::FromArgs;
 use tokio::io::{copy, split, stdin as tokio_stdin, stdout as tokio_stdout, AsyncWriteExt};
 use tokio::net::TcpStream;
+use tokio_rustls::rustls;
 use tokio_rustls::TlsConnector;
 
 /// Tokio Rustls client example

examples/server.rs

@@ -9,6 +9,7 @@ use pki_types::{CertificateDer, PrivateKeyDer};
 use rustls_pemfile::{certs, rsa_private_keys};
 use tokio::io::{copy, sink, split, AsyncWriteExt};
 use tokio::net::TcpListener;
+use tokio_rustls::rustls;
 use tokio_rustls::TlsAcceptor;
 
 /// Tokio Rustls server example