Refactor out InstitutionListing value object

[phavekes]

This issue is imported from pivotal - Originaly created at Jan 23, 2020 by bstrooband

Earlier on for filtering on institutions in RA the Institution projection was used. This however resulted in not being able to manage institutions if a user from that institution hadn't logged in before.

Therefore the ConfiguredInstitutions had to be used. But the MW client returned a serialized institutionListing value object. This serialized data was different then the serialized ConfiguredInstitution value object so the MW client bundle should have been updated for all projects where the InstitutionListing was used.

That would have resulted in too much changes just to fix a few bugs before releaseing R17. Therefore this issue was filed to address this later on.