Render enterprise relationships JSON with AMS instead of rabl

app/serializers/api/admin/enterprise_relationship_serializer.rb

@@ -0,0 +1,11 @@
+class Api::Admin::EnterpriseRelationshipSerializer < ActiveModel::Serializer
+  attributes :id, :parent_id, :parent_name, :child_id, :child_name
+
+  def parent_name
+    object.parent.name
+  end
+
+  def child_name
+    object.child.name
+  end
+end