Documentation Issue: Missing details for "CustomAttributeClassProps.appliesTo" property

[diegoalexdiaz]

No documentation on the accepted / expected values for the "appliesTo" property.

Found on page https://www.itwinjs.org/reference/ecschema-metadata/metadata/customattributeclassprops - "undefined"

[ben-polinsky]

Thanks, who would be able to provide that comment?

[ColinKerr]

It is technically documented in the EC spec docs though poorly: https://www.itwinjs.org/bis/ec/ec-custom-attribute-class/

It's also referenced in the actual class docs but inexplicably the appliesTo property is just listed as containerType in the actual class: https://www.itwinjs.org/reference/ecschema-metadata/metadata/customattributeclass/

I think the actual class should use appliesTo instead of containerType to match the props and the interfaces need some actual documentation

[ColinKerr]

This PR improves the docs and updates the class API to match the xml, json and interfaces: https://github.com/iTwin/itwinjs-core/pull/6946