Add PartialOrd and Ord implementation for std::net::SocketAddr

Fixes rust-lang#53710.

src/libstd/net/addr.rs

@@ -45,7 +45,7 @@ use slice;
 /// assert_eq!(socket.port(), 8080);
 /// assert_eq!(socket.is_ipv4(), true);
 /// ```
-#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)]
 #[stable(feature = "rust1", since = "1.0.0")]
 pub enum SocketAddr {
     /// An IPv4 socket address.