message: re-add missing objects in ASCII protocol
diff: /* Private variables ---------------------------------------------------------*/
  -static Introspectable root_obj = ODriveTypeInfo<ODrive>::make_introspectable(odrv);
  +#if HW_VERSION_MAJOR == 3
  +static Introspectable root_obj = ODrive3TypeInfo<ODrive>::make_introspectable(odrv);
  +#endif
  /* Private function prototypes -----------------------------------------------*/
  