Add sshchat dependencies in vendor

vendor/github.com/shazow/ssh-chat/sshd/doc.go

@@ -0,0 +1,34 @@
+package sshd
+
+/*
+
+	signer, err := ssh.ParsePrivateKey(privateKey)
+
+	config := MakeNoAuth()
+	config.AddHostKey(signer)
+
+	s, err := ListenSSH("0.0.0.0:2022", config)
+	if err != nil {
+		// Handle opening socket error
+	}
+	defer s.Close()
+
+	terminals := s.ServeTerminal()
+
+	for term := range terminals {
+		go func() {
+			defer term.Close()
+			term.SetPrompt("...")
+			term.AutoCompleteCallback = nil // ...
+
+			for {
+				line, err := term.ReadLine()
+				if err != nil {
+					break
+				}
+				term.Write(...)
+			}
+
+		}()
+	}
+*/