feat: add abi code trait impls

[mattsse]

Motivation

Implements Abiencode + AbiDecode to all core types including tuples

Solution

basically replicate the Abitype impls with macros

The reason this seems so redundant is because we can't add a default impl like

impl<T:AbiType +Tokenizable> AbiDeocde for T {
                fn decode(bytes: impl AsRef<[u8]>) -> Result<Self, AbiError> {
                    let tokens = ethers_core::abi::decode(
                        &[Self::param_type()], bytes.as_ref()
                    )?;
                    Ok(<Self as Detokenize>::from_tokens(tokens)?)
                }
}

because we also use AbiDcocde, Encode for EthCall for example which has the additional selector...

Still needs some tests

PR Checklist

• Added Tests
• Added Documentation
• Updated the changelog

[gakonst]

so far lgtm - how about we move everything codec related to ethers-core/src/abi?

[gakonst]

Tests failed for unrelated reason