refactor(proto): move more h1-specific pieces into h1 module

src/proto/h1/mod.rs

@@ -1,8 +1,12 @@
+pub use self::conn::{Conn, KeepAlive, KA};
 pub use self::decode::Decoder;
 pub use self::encode::{EncodedBuf, Encoder};
 
+mod conn;
 mod date;
 mod decode;
+pub mod dispatch;
 mod encode;
-pub mod parse;
+mod io;
+pub mod role;