Potential new features

[aochagavia]

Let's use this issue as a place to gather potential features to enhance KSON with, in a way that makes people's lives even easier. To keep things clean, let's discuss additions to the list below on Zulip. I'll update the list whenever there is consensus that we have found a Good Idea.

Here it goes:

• Generate in-browser editors tailored to your particular configuration schema, which you can then embed in your web applications to benefit from full-blown editor support. Users deserve better than editing configuration in a glorified textarea.
• Support schema-specific validation code. The technical details need to be worked out, but it would be nice to see validation plugins written in any language (e.g., through WebAssembly).
• Support defining schema migrations and applying them to existing configuration files in bulk, so users can trivially evolve their schemas over time.