Create report: holding institution

Please create a report that includes

1. holding institution slug
2. holding institution authorized name
3. holding institution coordinates
4. holding institution portals (please list each portal in a separate column)
5. holding institution state (field needs to be added--see #490 (closed))
6. holding institution county (field needs to be added--see #490 (closed))

I need to ask about portals. We can use repositories to figure out portals. Might be good to meet about this report in general, potentially with Brad/Seamus there as well. Also state/county come back as arrays, eg a holding inst can have multiple associated counties.

Josh suggested using this to make the counties/states display better in the report:
inst.geographic_locations.pluck(:us_county).filter{|x| x.present?}.uniq.join(', ')

Also potentially helpful:
HoldingInstitution.includes(repositories: :portals).each {|inst| puts inst.repositories.map {|repo| repo.portals.map &:code}.flatten.uniq.join(', ')} (prob change repositories to collections)

Will want to use the same algorithm that is used here: https://dlg.usg.edu/institutions