Checksum address output in log_address event and broadcast files

[tgfukuda]

Motivation

#2975

Solution

Change logged address (input, output, ...) to checksummed with ethers::core::utils::to_checksum.
It converts Address to String, so including fix for some formatting.

still not fixing broadcast json file, WIP

This is my first PR, so I'm sorry if it's in a wrong manner.

[gakonst]

this should be fine, is it OK that we're skipping the chain id? guess so?

[tgfukuda]

@gakonst

this should be fine, is it OK that we're skipping the chain id? guess so?

ethers-rs computes it as EIP-1191 if chainId is specified and as EIP-55 if not.
https://github.com/gakonst/ethers-rs/blob/master/ethers-core/src/utils/mod.rs#L279-L298
The checksummed address as EIP-1191 is possible but it may require many changes because some of the contexts like https://github.com/foundry-rs/foundry/pull/3108/files#diff-2a68e14bf95d2e3c7c7c72b92741c10dc2ea9027388a899a65a9a73b4152b80fR504 doesn't have chainId.
I like for PR to be as small as possible, so I think it is enough to checksum address in an EIP-55 style when it comes to this PR.
I don't know which one is better and want comments for it.

[gakonst]

sgtm re: chain id. makes sense to leave as-is.

this is coming along nicely - maybe if we could add a test to ensure we don't break it later?

[tgfukuda]

@gakonst
Thank you for your review.

I added the test for format_token method.

Additionally, addresses in a broadcast log of forge script becomes checksummed except for TypedTransaction of TransactionMetadata.
TypedTransaction is enum and the changes may be too large to review, I think. So it is not enough to the goal of this PR.

Log file generated by forge script is deeply depends on serde and ethers-rs implementation. To checksum every address of logs, need to modify the Serialize implementation of every struct related to it.

[gakonst]

sweet

[gakonst]

thank you for the contribution @tgfukuda! very helpful.