Adjusted initial bls12_381 branch#4

Merged

ewynx merged 19 commits intomainfrom

Oct 11, 2022

Commits on Sep 23, 2022

Commits on Sep 28, 2022

- Added comments to util, scalar, choice, fp, fp2, fp6, fp12 and g1. Also did some cleanup
ewynx
committed

Commits on Sep 29, 2022

Moved `choice.sw` to a separate library `utils`.
ewynx
committed

Commits on Sep 30, 2022

Import fixes
ewynx
committed

Commits on Oct 11, 2022

- Moved the get_contract_instance function to separate utils folder.
ewynx
committed