define tf2 GCHandshake

src/handshake.rs

@@ -0,0 +1,20 @@
+use crate::base_gcmessages::{CMsgClientHello, CMsgClientWelcome};
+
+#[derive(PartialEq, Clone, Default, Debug)]
+pub struct GCHandshake {
+    pub hello: CMsgClientHello,
+}
+
+impl steam_vent_proto_common::GCHandshake for GCHandshake {
+    type Hello = CMsgClientHello;
+
+    type Welcome = CMsgClientWelcome;
+
+    fn app_id(&self) -> u32 {
+        440
+    }
+
+    fn hello(&self) -> Self::Hello {
+        self.hello.clone()
+    }
+}

src/lib.rs

@@ -1,5 +1,7 @@
 //! steam-vent protobufs for tf2 specific messages
 
 mod generated;
+mod handshake;
 
 pub use generated::*;
+pub use handshake::GCHandshake;