Cleanup phone number generation.
Cleanup phone number generation.

- Use separate function to generate the phone number arrays.
- Add 'stringValue' for formatted string value.
- Add 'digits' for raw number.

joshuapinter/react-native-unified-contacts,joshuapinter/react-native-unified-contacts,joshuapinter/react-native-unified-contacts,joshuapinter/react-native-unified-contacts