Linkage improvement

* adds linking to submenus
* adds PaymentAdmin
* adds Meta class inheritance for tables

konova/urls.py

@@ -30,7 +30,6 @@ urlpatterns = [
     path('', home_view, name="home"),
     path('intervention/', include("intervention.urls")),
     path('compensation/', include("compensation.urls")),
-    path('eco-account/', include("intervention.urls")), #ToDo
     path('ema/', include("intervention.urls")), #ToDo
     path('organisation/', include("organisation.urls")),
     path('user/', include("user.urls")),