storageOption.waitUntilSaved option added.
storageOption.waitUntilSaved option added.

react-community/react-native-image-picker,marcshilling/react-native-image-picker,marcshilling/react-native-image-picker,marcshilling/react-native-image-picker,marcshilling/react-native-image-picker,react-community/react-native-image-picker,rayshih/react-native-image-picker,react-community/react-native-image-picker,rayshih/react-native-image-picker,react-community/react-native-image-picker,rayshih/react-native-image-picker,rayshih/react-native-image-picker