renderTextinput method

Hello,
would it be possible to isolate the Textinput in its own render method so we may override it?
A use case I've encountered recently is having to use a Mask (Either [this](https://github.com/react-native-community/react-native-text-input-mask) or [this](https://github.com/benhurott/react-native-masked-text)) which would require me to override the default Input.

Thank you.