Add table, schema, model and resolvers for localAffiliations

[briri]

We need a place to store affiliations that are created when a user selects 'Other' from the typeahead fields. The table will be called localAffiliations

The table should also contain these additional fields that can be updated afterward by an admin:

• id String! (a random alpha-numeric sequence similar to a ROR id)
• name String!
• displayName String! (auto-generated usually a combo of the name + homepage to help disambiguate)
• aliases String[]
• acronyms String[]
• homepage String
• metadataUrl String (the endpoint that can return metadata about the org)
• countryName String
• countryCode String

We also need a separate partnerAffiliations table that stores additional info for orgs that are defined in the table above as well as for ROR orgs.

• affiliationId String! (the localAffiliations metadataUrl OR the ROR id)
• ssoEntityId String (SSO entityId)
• emailDomains String[] (list of email domains/subdomains that are associated with the org if it uses SSO)
• logo File (logo image to display in the subHeader)
• nbrUsers Int! (an aid for helping sort typeahead results)
• helpdeskEmail String! (contact email to display in the subHeader)
• uiLinks String[] (links to display in the subHeader stored as { "link": "http://example.com", "displayOrder": 1 )