Hardhat task for requesting new ECDSA wallets

[lukasz-zimnoch]

Refs: #3041

Here we introduce a Hardhat task that allows requesting a new ECDSA wallet. This task should facilitate testing on local Ethereum networks. In order to run it, move to the solidity/ecdsa directory and do:

npx hardhat request-new-wallet --wallet-owner-address <owner> --network <network-name>

where owner is the wallet owner's address that can be set using the initialize-wallet-owner Hardhat task.