Dynamically typed structured data component-type (JSON)

[emilk]

We can start with something like JSON, even though we can hopefully store it more efficiently.

• [ ] Python SDK for rerun.log_json()
• [x] Introduce new "Raw / Text" view panel. Converts all field/components to text representation (similar to inspection view)
• [ ] Default to Raw / Text view panel if none of the components in the space are viewable.

Requires #403

[changh95]

Hi, is there any update on this issue?

[Wumpf]

We do have a raw text panel by now which supports markdown as well but there's no built-in json support. It's also possible now to build your own file support using a custom DataLoader, but for that you still end up logging the data types that the Viewer knows about.