Summary:
Adding the new `textContentType` options from iOS 12. `newPassword` helps the OS know to put a password field into the keychain, and `oneTimeCode` hints that the field will take input from an SMS one time code.
Pull Request resolved: https://github.com/facebook/react-native/pull/21079
Differential Revision: D9813328
Pulled By: TheSavior
fbshipit-source-id: d2c04b41121b32f185af38ea4c642924e261a043