/api/institutions/ID/departments

List all departments under to the institution in question.

GET /api/institutions/123/departments
Host: apply.example.edu
Authorization: DREAM apikey="..."

Content-Type: application/json
Content-Length: 1234
X-Count: 3

{

  "1": {
      "name": "Some Department",
      "country": "EE",
      "location": "Tallinn",
      "www": "www.uni.ee/some-department"
  },
  "7": {
      "name": "Some Other Department",
      "country": "EE",
      "location": "Tallinn",
      "www": "www.uni.ee/some-other-department"
  }

}