[Feature]: Make it possible to update chain id

[jtremback]

Summary

Chain id seems to be the only thing that cannot be updated after a chain's creation. This has caused a problem in production, where a team was not sure what chain id they would eventually want to use, and we had to tell them not to create their chain. It seems strange that it cannot be updated before spawn time. It seems like a perfect field to go into initializationParameters and be possible to update before spawn time. Is there a good reason for this?

Problem Definition

No response

Proposed Feature

Make it possible to update chain id, maybe put it in initializationParameters