Rewrite Camelify types to generate interface at build time

[NathanFlurry]

This is cool as hell, but let's keep it simple and generate a basic interface for us mortals at build time. Simpler is almost always better.

[linear[bot]]

OGBE-68 Rewrite Camelify types to generate interface at build time

[This](https://github.com/rivet-gg/opengb/blob/a87da574d5fdc64c4a698ee6cf23a46949d9c151/src/types/case_conversions.ts) is cool as hell, but let's keep it simple and generate a basic interface for us mortals at build time. Simpler is almost always better.