Add 'render' hint property to v2 context

[dmitrizagidulin]

This standalone PR adds the render hint property to the VC 2.0 @context. (Note: this separate from PR #1035).

The render hint allows for linking to, or embedding, issuer display preferences / hints in a flexible manner (see the Rendering Verifiable Credentials paper from RWOT 11 for more info and examples).

The intention is to add examples of render usage to the VC Spec directory.

[brentzundel]

I assume this PR depends on agreement around #1035. I'm not understanding why we would add render to the V2 @context otherwise.
Is that correct?

[dmitrizagidulin]

I assume this PR depends on agreement around #1035. I'm not understanding why we would add render to the V2 @context otherwise. Is that correct?

This is an alternative, lighter-weight proposal to PR #1035 that reserves the term so that extension specifications can use it.

[brentzundel]

without spec text indicating that the term is being reserved, I don't think adding render to the @context file would be appropriate.

[OR13]

I do not believe we should add the render property to the core v2 context.

[selfissued]

I agree with @brentzundel that it's unnecessary to add this property.

[Aisp-GitHub]

Sorry it was a mistaken operation about approving the change on adding render property.

[dmitrizagidulin]

No consensus was able to be reached, closing PR.