[Do not merge] Generic Serializer for Incremental Aggregation

[abbywh]

Summary

WIP, want to genericize the incremental aggregation work by genericizing the serializer

Why / Goal

All aggregations can be tiled daily

Test Plan

Will have to do all of these more

• [ ] Added Unit Tests
• [ ] Covered by existing CI
• [ ] Integration tested

Checklist

• [ ] Documentation update

Reviewers

[abbywh]

https://github.com/kambstreat/chronon/pull/3 main pr