Add Nova support

[ghost]

Contract address for nova: https://nova-deploy.tornado.cash

ETH:

Deployment Proxy: https://etherscan.io/address/0xd408455e186CD6447A196DdA6BBaFa6556a2555F

L1 Helper: https://etherscan.io/address/0xCa0840578f57fE71599D29375e16783424023357

Gnosis Chain:

Deployment Proxy: https://blockscout.com/xdai/mainnet/address/0xd408455e186CD6447A196DdA6BBaFa6556a2555F

Hasher: https://blockscout.com/xdai/mainnet/address/0x94C92F096437ab9958fC0A37F09348f30389Ae79/contracts

Verifier2: https://blockscout.com/xdai/mainnet/address/0xDF3A408c53E5078af6e8fb2A85088D46Ee09A61b/contracts

Verifier16: https://blockscout.com/xdai/mainnet/address/0x743494b60097A2230018079c02fe21a7B687EAA5/contracts

TornadoCash Nova Implementation: https://blockscout.com/xdai/mainnet/address/0xb71f45676446DeB0baD5e28CdB72b5E7B0666436/contracts

Cross-chain Upgradeable Proxy: https://blockscout.com/xdai/mainnet/address/0xD692Fd2D0b2Fbd2e52CFa5B5b9424bC981C30696/contracts

[ghost]

Contract code: https://github.com/tornadocash/tornado-nova

Test case ( Useful for understanding how it works ): https://github.com/tornadocash/tornado-nova/blob/master/test/full.test.js

[poma]

Don't you think Nova support should be in a separate repo?

[ghost]

@poma I think not, it could be created either with separate file ( For example like nova.js ), or different command like depositNova with this repo.