feat: game class for managing the game and running it in main

src/main.cpp

@@ -1,6 +1,7 @@
-#include <iostream>
+#include "Game.hpp"
 
 int main() {
-    std::cout << "Hello, World!" << std::endl;
+    Game game;
+    game.Run();
     return 0;
-}
+}