Include Ganache private chains (5777) in EIP-155

[rickmark]

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[eth-bot]

Hi! I'm a bot, and I wanted to automerge your PR, but couldn't because of the following issue(s):

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(fail) eip-155.md

classification
updateEIP

• eip-155.md is in state final at the head commit, not draft or last call or review; an EIP editor needs to approve this change
• This PR requires review from one of [@lightclient, @axic, @gcolvin, @SamWilsn, @Pandapip1]
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[rickmark]

Not sure this is still valid, Ganache uses 1337/5777 which means the network id is common but not the same as the chain...

[Pandapip1]

The rationale for this change is unclear. Why is this necessary? Does Gananche not already implement this?

[SamWilsn]

We've discussed this change on today's EIPIP, and we will not be modifying EIP-155 to add this chain id.

EIPs are not the best place to maintain tables that are intended to change over time.