Potential confusion around `author` and `creator`

[elichad]

For CreativeWork entities these properties are the same, but it is confusing that we have not settled on using only one of them. This makes it more likely that tools will pick up one and not the other. I've just realised I've only been collecting author in code I've written, and it sounds like WorkflowHub sounds like it may also only collect author.

Using author:

• most of the spec, e.g. https://www.researchobject.org/ro-crate/specification/1.2-DRAFT/contextual-entities.html#people
• WorkflowHub https://about.workflowhub.eu/Workflow-RO-Crate/#extracted-metadata

Using creator:

• Bioschemas ComputationalWorkflow profile https://www.researchobject.org/ro-crate/specification/1.2-DRAFT/workflows.html#complete-workflow-example
• ISA profiles https://www.researchobject.org/ro-crate/profiles#isa-profile