v1.2.2 - Ethereum Interoperability Update

This release introduces native support for Keccak-256 hashing, enabling full, byte-perfect interoperability with the Ethereum ecosystem.

🚀 New Features

• Keccak-256 Support: Added Keccak256 implementation in dcrypt-algorithms. This uses the original Keccak padding (0x01 domain separator) required for Ethereum addresses, function selectors, and EIP-712 signatures, distinguishing it from the standard NIST SHA3-256.
• Hash API Integration: Keccak256 implements the standard HashFunction trait, allowing seamless integration with existing hashing workflows.
• Parameter Constants: Added KECCAK256_OUTPUT_SIZE and KECCAK256_BLOCK_SIZE to dcrypt-params.

📚 Documentation

• Updated hashing documentation to clarify the distinction between Sha3_256 and Keccak256.
• Added specific guidance on when to use Keccak256 (e.g., EVM compatibility).

🛠 Fixes & Improvements

• Expanded test coverage to include vectors for Keccak-256.
• Fixed unused import warnings in elliptic curve modules.