Add frame tick system for continuous animation

- Added INPUT_FRAME_TICK event type to input_event.h
- Added wants_frame_updates() virtual method to Game base class
- Implemented frame tick logic in main loop (basic1.cpp and emulator/main.cpp)
- Added Lua bindings: game.set_frame_updates(bool) and INPUT.FRAME_TICK
- Updated LuaGame to support frame updates via registry flag
- Updated ball.lua to use continuous frame updates for smooth animation
- Both hardware and emulator now support continuous animation for physics/games

emulator/game.h

@@ -15,6 +15,7 @@ public:
     virtual bool update(const InputEvent& event) = 0;
     virtual void draw() = 0;
     virtual bool wants_to_exit() const { return false; }
+    virtual bool wants_frame_updates() const { return false; }
     
     // Public members for Lua bindings access
     uint16_t width;