Implement framework for menu system

Co-authored-by: sigonasr2 <sigonasr2@gmail.com>

Crawler/Menu.h

@@ -0,0 +1,18 @@
+#pragma once
+#include "MenuButton.h"
+#include "olcPixelGameEngine.h"
+#include <stack>
+
+class Crawler;
+
+class Menu{
+    std::stack<Menu*>*stack=nullptr;
+    std::vector<MenuButton>buttons;
+    vf2d size; //Size in tiles (24x24), every menu will be tile-based
+    
+    Menu();
+    void AddButton(vf2d pos);
+    void Update(float fElapsedTime);
+    void Draw(Crawler*game);
+};
+

Crawler/MenuButton.h

@@ -0,0 +1,17 @@
+#pragma once
+#include "olcPixelGameEngine.h"
+#include <functional>
+
+class Menu;
+class Crawler;
+
+class MenuButton{
+    Menu*menuDest;
+    vf2d size;
+    std::string label;
+    Decal*icon;
+    std::function<void()>onClick;
+    
+    void Update(float fElapsedTime);
+    void Draw(Crawler*game);
+};