Search should return collaborators using similar research methods, domains, and subject pools

[saragon02]

As a researcher I want to find collaborators using similar research methods, domains, and subject pools in order to design collaborative projects.

*Note from 06/18/18 DevSci meeting: "All of DevSci's work is collaborative, spanning schools and units. Potential collaborators search for each other now in DevSci and have a hard time locating each other."

-Subject domains, research methodologies, tools, measurement techniques, demographics (sample-level metadata per CD2H 6/18/18 meeting) are all candidates for schema to be included.

Related libraries:

• https://github.com/inveniosoftware/invenio-orcid (:warning: experimental)
• https://github.com/inveniosoftware/domapping (:warning: experimental)
• https://github.com/inveniosoftware/invenio-userprofiles

[saragon02]

Part of this would be offering drop-down or searchable choices of subject access and study-level data elements, possibly showing mappings to similar terms (e.g.: ontologies).

[fenekku]

I think the search filters / facets of #117 cover part of this. Having the search return authors is what this task seems to be about and the title has been reflected as such.

This is also much more involved, so I pushed it to the latest milestone.