Add support for Play Integrity

[agsola]

Google has released Play Integrity (https://developer.android.com/google/play/integrity) to deprecate SafetyNet (https://developer.android.com/training/safetynet/deprecation-timeline).

It would be great to add support for Play Integrity, as some new apps like Google Wallet seems to start using it as a way to detect root.

[nicol-ograve]

Play Integrity is not meant to be a method to check root state directly in app, but rather to ensure safe transactions / data exchange while sending requests to the backend