feat: implement json schema for config

[EmilyGraceSeville7cf]

Validates a config file.

If this PR is accepted this schema is referenced in SchemaStore to automatically enable validation for .jqp.yaml.

[noahgorstein]

I'm not actually too familiar with how this would be used. So editors like VSCode/Sublime/etc use this file to validate a config? If that's the case, how do they consume this config file? Does it read directly from this repo?

[EmilyGraceSeville7cf]

I'm not actually too familiar with how this would be used.
...
If that's the case, how do they consume this config file? Does it read directly from this repo?

There are several possible ways of utilizing this schema (YAML extension is required in VS Code to make them work):

• It can be referenced directly # yaml-language-server: $schema={{schema url in this repository}} in .jqp.yaml, this is a manual approach because requires user to put a full URL by hand.
• It can be put in SchemaStore and referenced there like this. This approach ensures that whenever user edits .jqp.yaml they get the latest hints for it.

So editors like VSCode/Sublime/etc use this file to validate a config?

Exactly. 😄

[noahgorstein]

Thanks for your contribution @EmilyGraceSeville7cf !