v0.8.0

[MDobak]

Version 0.8 introduces significant refactoring to allow support for various L2 and RPC providers that may differ from standard Ethereum.

Key Changes:

• Transaction and Call Types: These are now interfaces, allowing for multiple implementations, including custom ones.
• Default RPC Client: The default RPC client is now extendable, making it easier to add non-standard RPC methods.
• TXModifier: TXModifier has been replaced with hijackers, which can modify all RPC calls, not just transactions.

TODO:

• Add blob TX types
• Increase test coverage
• Update README
• Update examples
• Fix pending issues