(cobra bots) add a utility class to factor out the common bots features (heartbeat) and move cobra to sentry bot to use it

ixbots/ixbots/IXCobraBot.h

@@ -0,0 +1,42 @@
+/*
+ *  IXCobraBot.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2020 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+#include <ixcobra/IXCobraConfig.h>
+#include <stddef.h>
+#include <json/json.h>
+#include <mutex>
+#include <condition_variable>
+#include <queue>
+#include <map>
+
+namespace ix
+{
+    using OnBotMessageCallback = std::function<bool(const Json::Value&,
+                                                    const bool verbose,
+                                                    std::atomic<bool>&)>;
+
+    class CobraBot
+    {
+    public:
+        CobraBot() = default;
+
+        int64_t run(const CobraConfig& config,
+                    const std::string& channel,
+                    const std::string& filter,
+                    const std::string& position,
+                    bool verbose,
+                    size_t maxQueueSize,
+                    bool enableHeartbeat,
+                    int runtime);
+
+        void setOnBotMessageCallback(const OnBotMessageCallback& callback);
+
+    private:
+        OnBotMessageCallback _onBotMessageCallback;
+    };
+}