Add new fields to form

- Add :date_of_birth and :postal_code
- Only display new fields when aplication has configured the Remote
  Census API and contains values for fields. Check with Setting Class
  methods:
  - force_presence_date_of_birth?
  - force_presence_postal_code?

app/controllers/management/document_verifications_controller.rb

@@ -34,7 +34,8 @@ class Management::DocumentVerificationsController < Management::BaseController
   private
 
     def document_verification_params
-      params.require(:document_verification).permit(:document_type, :document_number)
+      params.require(:document_verification).permit(:document_type, :document_number,
+                                                    :date_of_birth, :postal_code)
     end
 
     def set_document