Schema bundling and testing

[atilante]

We should be able to bundle the JAAL JSON schema into one .json file, because that is more compact for production use. (less files -> less HTTP requests -> decreased exercise loading time in web browser)

Therefore:

• [ ] Check that spec/bundle.js still works. You should be able to run it like node bundle. It should create a file spec/bundle/jaal-bundle.json which combined all the schemas in spec/schemas.
• [ ] Try to load the bundled schema with spec/test.js and run the ajv-based tests against it.

If that works, you can continue with https://github.com/Aalto-LeTech/jsav-exercise-recorder/issues/14 .

[Meratyn]

spec/bundle.js does not work anymore.

The resulting bundle errors out with resolving references internally.

Following https://github.com/APIDevTools/json-schema-ref-parser/tree/main/docs#circular-refs to use the bundle method over dereference causes error: can't resolve reference #/properties/definitions/properties/styles/items/definitions/hexcolor from id https://jaal.fi/schemas/style.json. When trying to resolve this by first dereferencing the style.json file as they are internal references, it causes a similar error for the bundled version: error: can't resolve reference #/properties/animation/items from id https://jaal.fi/schemas/definitions.json.