Make udprelay/crypto_io public

Author: XOR-op

crates/shadowsocks/src/relay/udprelay/mod.rs

@@ -54,7 +54,7 @@ pub use self::proxy_socket::ProxySocket;
 mod aead;
 #[cfg(feature = "aead-cipher-2022")]
 mod aead_2022;
-mod crypto_io;
+pub mod crypto_io;
 pub mod options;
 pub mod proxy_socket;
 #[cfg(feature = "stream-cipher")]