add Address property into Experts pattern

[jmckenna]

• front-end OIH search will leverage the workLocation property and its address from the schema.org Person type, for Experts
• important: the current indexer code assumes that the address property is text (not the "@type": "PostalAddress")
• here is a proper example:

    "workLocation": {
      "@type": "Place",
      "address": "54 Ocean Drive, 23521 Ocean City, CountryName",
      "name": "Place name"
    } 

• cc @arnounesco

[arnounesco]

@jmckenna , can you check in https://dev.oceanexpert.org/ if this is ok now. Once confirmed I can put this live and can the system get that info. done both for experts and for institutions e.g.

• https://dev.oceanexpert.org/institution/6223
• https://dev.oceanexpert.org/expert/35711

[jmckenna]

@arnounesco Regarding type Organizations:

• the indexer/region code requires an @type Place, but the "address" property (for Organizations) cannot have a Place (according to schema.org, which does not validate with your JSON-LD - your JSON-LD is broken, in other words).

• here is what you currently have for Organizations:

  "address": {
  "@type":"Place",
  "address": "InnovOcean Campus, 8400 Oostende, BE"
  }

  But you should instead have:

  "address": "InnovOcean Campus, 8400 Oostende, Belgium",

  "location": {
    "@type": "Place",
    "address": "InnovOcean Campus, 8400 Oostende, Belgium"
  },

(the first address is optional, as the current indexer code will not use it, but the second Location, with its Place & address, will be used by the indexer code - and it validates)

• also note that the Organizations address should spell out the country name Belgium, for the current region/indexer code to work - Organizations JSON-LD uses BE 2 digit country code instead.