Update EIP-5164: Move to review

[PierrickGT]

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This PR aims to move EIP-5164 to the review stage. We have improved the description and made some changes regarding the interface. Mainly, we have specified how messages can be uniquely identified using the nonce and sender and how the CrossChainExecutor must execute these messages. We have also removed the ExecutorAware interface cause it is up to the developers of applications to figure out how they should receive and identify the messages they bridge through EIP-5164. We also don't specify how transaction ordering should be handled but developers can use the nonce if they wish to enforce it.

[eth-bot]

A critical exception has occurred: Message: pr 5808 is already merged; quitting (cc @alita-moore, @mryalamanchi)

[PierrickGT]

👍 except for that one comment

@Pandapip1 thanks, I've committed your suggestion for the Calldata.

There are also a few markdown linting errors about duplicate headers. Should I fix those? I see there are other errors in other files.