Monitor all HID++ reports on wireless device 1

Again, many things were done in this commit such as implementing an
I/O queue, a mutex_queue, and implementing the hidpp::Report class.

I'm expecting commits to be like this until I can get a clean
codebase for the backend.

src/logid/util/mutex_queue.h

@@ -0,0 +1,37 @@
+#ifndef MUTEX_QUEUE_H
+#define MUTEX_QUEUE_H
+
+#include <queue>
+#include <mutex>
+
+template<typename data>
+class mutex_queue
+{
+public:
+    mutex_queue<data>() = default;
+    bool empty()
+    {
+        std::lock_guard<std::mutex> lock(_mutex);
+        return _queue.empty();
+    }
+    data& front()
+    {
+        std::lock_guard<std::mutex> lock(_mutex);
+        return _queue.front();
+    }
+    void push(const data& _data)
+    {
+        std::lock_guard<std::mutex> lock(_mutex);
+        _queue.push(_data);
+    }
+    void pop()
+    {
+        std::lock_guard<std::mutex> lock(_mutex);
+        _queue.pop();
+    }
+private:
+    std::queue<data> _queue;
+    std::mutex _mutex;
+};
+
+#endif //MUTEX_QUEUE_H