gnark integration

[vivianjeng]

Problem

gnark is a fast zk library. It is even more performant than ark-works. We can try to integrate it as an adapter.

Details

Either

• generate a rust bindings from go
• or use go bindings directly in iOS and Android ( The https://github.com/0xPolygonID/polygonid-flutter-sdk uses go bindings in flutter)

Acceptance criteria

Generate a gnark proof in iOS and Android.