* Extend poseidon to 16 inputs. Better initialization of Poseidon constants
* Update deps
* Fix linter warnings
* Test vectors for poseidon with 14 inputs

Update Poseidon to last changes of the reference implementation from
26ddaa91db

Compatible with update at circomlib
(cf853c1cc9)

- Update PackSignY & UnpackSignY interface and description
- Add test for UnpackSignY & PackPoint

- Update BabyJubJub EdDSA signature to last circomlib version (Poseidon
usage)
- Remove panic on hash error inside verification, to avoid panic due
field overflow of BabyJubJub signature verification

importing go-iden3