Support exiting GPU Test

examples/PoolBox/application/src/include/menu.hpp

@@ -1,6 +1,7 @@
 #pragma once
 #include "font_writer.hpp"
 #include <FontWriter/font_writer.hpp>
+#include <PSX/Timer/frame_timer.hpp>
 
 namespace Menu {
     using namespace JabyEngine;
@@ -29,4 +30,21 @@ namespace Menu {
 
         void update(JabyEngine::FontWriter& font_writer, State& cursor, const GPU::PositionI16& start);
     };
+
+    class BackMenu {
+    private:
+        JabyEngine::FontWriter* font_writer;
+        SimpleTimer<uint32_t>   timeout;
+        bool                    waiting;
+
+    public:
+        void setup(JabyEngine::FontWriter* font_writer);
+        void reset() {
+            this->timeout.reset();
+            this->waiting = false;
+        }
+
+        bool update(const GPU::PositionI16& position);
+        void render();
+    };
 }