Automatic camelCase <-> snake case conversion for message fields

[brentyi]

We define messages in Python right now (https://github.com/nerfstudio-project/viser/blob/main/viser/_messages.py) that are automatically translated to TypeScript interfaces (https://github.com/nerfstudio-project/viser/blob/main/viser/client/src/WebsocketMessages.tsx).

The field names are currently always the same (and thus snake case because messages are defined originally in Python), but it'd be nice if the TypeScript end of things used camel case. Camel case will also make the websocket messages slightly smaller. :)

[akansjain]

Hello brentyi, I would like to take this up. Please assign this issue to me.

[brentyi]

@akansjain assigned you! Sorry for the late reply!