Helpers for rustls

https://docs.rs/rustls-helper

rust let config = rustls_helper::create_server_config( rustls_helper::cert_from_pem( tokio::fs::read("server.pem").await?, )?, rustls_helper::key_from_pem( tokio::fs::read("server-key.pem").await?, )?, Some(rustls_helper::cert_from_pem( tokio::fs::read("rootCA.pem").await?, )?), )?;