Replace GeoPoint with GeoShape as attribute of LocationType

** Why are these changes being introduced:

* Now that we're adding geospatial records to TIMDEX, we have changed
  the data model slightly. Initially we had wanted to use a GeoPoint
  field in the LocationType construct, but that is now ending up as
  GeoShape. As a result, we need to update the application code to
  match our actual use of these records.

** Relevant ticket(s):

* https://mitlibraries.atlassian.net/browse/gdt-134

** How does this address that need:

* This replaces the GeoPoint field with a GeoShape field.

* In parallel to the data model change, we also add a test to confirm
  that all three fields are coming back from the GraphQL endpoint.

** Document any side effects to this change:

* I'm not sure whether it is a problem to be testing the extents of the
  data model in this way, but I'm also not sure whether there's a
  better way to confirm this change in code. It feels worse to do a test
  of a specific record, because then our tests are fragile to changes
  in library holdings - which feels worse.

Author: matt-bernhardt

app/graphql/types/record_type.rb

@@ -108,7 +108,7 @@ class AlternateTitleType < Types::BaseObject
 
   # Warning: related_place was supposed to be an array but was incorrectly a string in graphql for v1
   class LocationType < Types::BaseObject
-    field :geopoint, String, description: 'GeoPoint data for the location, if applicable'
+    field :geoshape, String, description: 'GeoShape data for the location, if applicable'
     field :kind, String, description: 'Type of location'
     field :value, String, description: 'Name of location'
   end

test/controllers/graphql_controller_v2_test.rb

@@ -454,6 +454,30 @@ def setup
     end
   end
 
+  test 'graphqlv2 can retrieve geolocation information' do
+    VCR.use_cassette('graphql v2 geolocation') do
+      post '/graphql', params: { query: '{
+                                  search(searchterm: "train stations") {
+                                    records {
+                                      locations {
+                                        geoshape
+                                        kind
+                                        value
+                                      }
+                                    }
+                                  }
+                                }' }
+      assert_equal(200, response.status)
+      json = JSON.parse(response.body)
+
+      assert_not json['errors'].present?
+      assert_equal(
+        json['data']['search']['records'].first['locations'][0].keys.sort,
+        ["geoshape", "value", "kind"].sort
+      )
+    end
+  end
+
   test 'graphqlv2 retrieve invalid field' do
     post '/graphql', params: { query: 'recordId(id: "stuff") {
                                 stuff