#86 Edit payment

* adds button for payment editing
* adds new edit form payment editing
* adds tests for views and workflow

compensation/urls/payment.py

@@ -12,4 +12,5 @@ app_name = "pay"
 urlpatterns = [
     path('<id>/new', new_payment_view, name='new'),
     path('<id>/remove/<payment_id>', payment_remove_view, name='remove'),
+    path('<id>/edit/<payment_id>', payment_edit_view, name='edit'),
 ]