settings/ios_settings library

1. advanced_background_locator package
2. documentation
3. settings/ios_settings.dart

advanced_background_locator package

1. Libraries
2. advanced_background_locator
3. auto_stop_handler
4. callback_dispatcher
5. keys
6. location_dto
7. settings/android_settings
8. settings/ios_settings
9. settings/locator_settings
10. utils/settings_util