Route platform frame hooks through services

src/platform_windows/windows_platform_services.cpp

@@ -8,6 +8,8 @@ extern std::deque<std::packaged_task<void()>> main_tasklist;
 extern std::mutex main_task_mutex;
 
 void destroy_window();
+void win32_update_fps(int frames);
+void win32_update_stylus(float dt);
 
 namespace {
 
@@ -168,6 +170,16 @@ public:
         (void)visible;
     }
 
+    void update_platform_frame(float delta_time_seconds) override
+    {
+        win32_update_stylus(delta_time_seconds);
+    }
+
+    void report_rendered_frames(int frames) override
+    {
+        win32_update_fps(frames);
+    }
+
     void display_file(std::string_view path) override
     {
         (void)path;