Eip-4361 Packages

Simple implementation Sign-In with Ethereum (SIWE) library with Viem v2

Implementation of [EIP-4361](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-4361.md). Fork of [@bytesbay](https://github.com/bytesbay) [Web3Token](https://github.com/bytesbay/web3-token) project without unnecessary dependencies.