[converter] criteria.yml should convert to SHACL

[vsoch]

So that we can test with pySHACL. I will link the issue / discussion shortly!

[nicholascar]

The SHACL specification - https://www.w3.org/TR/shacl/
Known SHACL validator tools - http://w3c.github.io/data-shapes/data-shapes-test-suite/

[vsoch]

@ricardoaat I will ping you here as well - do you know about any efforts to convert the bioschemas outputs to RDF proper? Or Json-ld (we are looking for a pathway to get there from yaml!)