add necessary CMake files

pool.hpp

@@ -0,0 +1,24 @@
+#include <thread>
+
+#include <mutex>
+#include <future>
+#include <atomic>
+#include <condition_variable>
+
+#include <memory>
+
+#include <vector>
+#include <forward_list>
+
+template <typename T>
+struct Message {
+    std::unique_ptr<T> payload;
+};
+
+template <typename T>
+struct Queue {
+    std::forward_list<Message<T>> queue;
+};
+
+template <typename T>
+struct Tunnel {};