add example websocket C++ server snake which supports basic cobra ops (publish and subscribe without stream sql

ws/snake/IXSnakeConnectionState.h

@@ -0,0 +1,40 @@
+/*
+ *  IXSnakeConnectionState.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+#include <string>
+#include <future>
+
+#include <ixwebsocket/IXConnectionState.h>
+#include "IXRedisClient.h"
+
+namespace snake
+{
+    class SnakeConnectionState : public ix::ConnectionState
+    {
+    public:
+        std::string getNonce() { return _nonce; }
+        void setNonce(const std::string& nonce) { _nonce = nonce; }
+
+        std::string appkey() { return _appkey; }
+        void setAppkey(const std::string& appkey) { _appkey = appkey; }
+
+        std::string role() { return _role; }
+        void setRole(const std::string& role) { _role = role; }
+
+        ix::RedisClient& redisClient() { return _redisClient; }
+
+        std::future<void> fut;
+
+    private:
+        std::string _nonce;
+        std::string _role;
+        std::string _appkey;
+
+        ix::RedisClient _redisClient;
+    };
+}