feat: implement basic core API genesis source and target

[aaronc]

Description

This implements a basic core API genesis source and target against RawJSON in core/genesis. This is sufficient to start integrating into runtime/module manager after #14333 is merged.

File based genesis streaming is being done in #13724 which is preferable but a bit more involved.

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Author Checklist

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• confirmed the correct type prefix in the PR title
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• reviewed state machine logic
• reviewed API design and naming
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• reviewed tests and test coverage
• manually tested (if applicable)

[tac0turtle]

not entirely sure how this plays into things, would be good to get some quick docs explaining things so reviewers can catch up instead of waiting for specific people

[sonarqubecloud]

[Cosmos SDK] SonarCloud Quality Gate failed.   

0 Bugs
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0.0% Coverage
0.0% Duplication

[aaronc]

not entirely sure how this plays into things, would be good to get some quick docs explaining things so reviewers can catch up instead of waiting for specific people

Sorry the context is here: #14223. I should have linked that.

I am trying to have everything documented in #12972 but I need to do a fair amount of updates to that to reflect the latest design and then hopefully we can merge at least as DRAFT or PROPOSED.

Is the context in #14223 sufficient for now @tac0turtle ? Either way I can try to prioritize #12972 next week if that would be useful

[sonarqubecloud]

[Cosmos SDK - Core] Kudos, SonarCloud Quality Gate passed!   

0 Bugs
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0 Security Hotspots
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No Coverage information
No Duplication information

[aaronc]

Tagged core/v0.4.1 with this