ACP pod owner not defined

[matthieubosquet]

ACP talks about a Pod owner that always has Read and Write access to all Access Control Resources.

See: https://github.com/solid/authorization-panel/blob/master/proposals/acp/definitions.md#pod-owner

However, Pod Owner is defined neither by the ACP ontology, nor by the Solid ontology.

I think the creation of the named individual solid:PodOwner to refer to the current pod’s owner and accompanying predicate solid:podOwner, which would allow to declare the aforementioned Pod owner in a standard way would fill a gap in the Solid ecosystem and help answer questions such as the ones raised on Gitter recently.

[matthieubosquet]

The notion of owner has now been defined in the Solid Protocol spec.

See:

• Add notion of "owner" and requirements specification#264
• Add notion of "owner" and requirements specification#264 (comment)
• Add owner to solid terms vocab#52