message: feat(api): cache_instruments when creating simulator.
diff: @@ -177,6 +177,7 @@ class API(HardwareAPILike):
  strict_attached_instruments)
  await backend.setup_gpio_chardev()
  api_instance = cls(backend, loop=checked_loop, config=config)
  + await api_instance.cache_instruments()
  await backend.watch_modules(
  register_modules=api_instance.register_modules)
  return api_instance
  