Add sample order to sample data

lib/tasks/sample_data.rake

@@ -10,6 +10,7 @@ require "tasks/sample_data/product_factory"
 require "tasks/sample_data/shipping_method_factory"
 require "tasks/sample_data/taxon_factory"
 require "tasks/sample_data/user_factory"
+require "tasks/sample_data/order_factory"
 
 # The sample data generated by this task is supposed to save some time during
 # manual testing. It is not meant to be complete, but we try to improve it
@@ -49,6 +50,8 @@ namespace :ofn do
     CustomerFactory.new.create_samples(users)
 
     GroupFactory.new.create_samples
+
+    OrderFactory.new.create_samples
   end
 
   def seeded?