feat: helpers for AnyNetwork

[klkvr]

Motivation

Small changes for foundry-rs/foundry#7106

Adds AnyNetworkSigner and alias for AnyNetwork::ReceiptResponse as it's pretty long

Solution

PR Checklist

• Added Tests
• Added Documentation
• Breaking changes

[Evalir]

makes sense to make this Arc so we can share the same signer

[mattsse]

not sure if it makes sense to duplicate the signer type,

Perhaps for forward compatibility we can do that, in case we want to support more tx types that are don't exist on ehtereum (currently there aren't any)

so I think for now we can simply use the ethereumsigner for AnyNetwork as well but add impl NetworkSigner<AnyNetwork> for EthereumSigner { because both networks have the same UnsignedTx

I believe we could even do

impl<N> NetworkSigner<N> for EthereumSigner
    where N: Network<UnsignedTx= TypedTransaction, TxEnvelope = TxEnvelope >
        {

wdyt @prestwich

[mattsse]

could move or reexport this to/from rpc types and rename AnyTransactionReceipt?

[mattsse]

this is the same as:

alloy/crates/network/src/ethereum/signer.rs

Line 10 in 693d91d

pub struct EthereumSigner(Arc<dyn TxSigner<Signature> + Send + Sync>);

so I assume we can reuse EthereumSigner but

also implement impl NetworkSigner<AnyNetwork> for EthereumSigner {

?

[prestwich]

supportive of type-reuse and the blanket impl

The reason that NetworkSigner<N> is a trait and not an assoc type is to allow many different objects to be network signers. We could even do a blanket like impl<T> NetworkSigner<Ethereum> for T where T: TxSigner<alloy_primitives::Signature>

[prestwich]

basically the idea of NetworkSigner<N> is "any object that can sign any subset of transactions allowed by the network"