Get organisations

Example response

[
  {
    "Organisation": {
      "id": "12345",
      "name": "ORGNAME",
      "date_created": "2021-06-14 14:29:19",
      "date_modified": "2021-06-14 14:29:19",
      "type": "ADMIN",
      "created_by": "12345",
      "user_count": "3"
    }
  }
]