Pluggable permissions (#5728)

* Data model draft

* Refactor query and assignment usages of old permissions

* Backend UI

* API serializer

* Big string replace

* Docs, tests and fixes for teams api

* Update docs for device auth

* Eliminate old names

* Make tests pass

* Use new permissions, remove inconsistencies

* Add test for translations

* Show plugin permissions

* Add permission for seating plans

* Fix plugin activation

* Fix failing test

* Refactor to permission groups

* Update doc/api/resources/devices.rst

Co-authored-by: luelista <weller@rami.io>

* Update doc/api/resources/events.rst

Co-authored-by: luelista <weller@rami.io>

* Update src/pretix/api/serializers/organizer.py

Co-authored-by: luelista <weller@rami.io>

* Fix typo

* Fix python version compat

* Replacement after rebase

* Add proper permission handling for exports

* Docs for exporters

* Runtime linting of permission names

* Fix typos

* Show export page even without orders permission

* More legacy compat

* Do not strongly validate before plugins are loaded

* Rebase migration

* Add permission for outgoing mails

* Review notes

* Update doc/api/resources/teams.rst

Co-authored-by: Richard Schreiber <schreiber@pretix.eu>

* Clean up logic around exporters

* Review and failures

* Fix migration leading to forbidden combination

* Handle permissions on event copying

* Remove print-statements

* Make test clearer

* Review feedback

* Add AnyPermissionOf

* migration safety

---------

Co-authored-by: luelista <weller@rami.io>
Co-authored-by: Richard Schreiber <schreiber@pretix.eu>

src/pretix/plugins/stripe/views.py

@@ -473,7 +473,7 @@ def paymentintent_webhook(event, event_json, paymentintent_id, rso):
     return HttpResponse(status=200)
 
 
-@event_permission_required('can_change_event_settings')
+@event_permission_required('event.settings.general:write')
 def oauth_disconnect(request, **kwargs):
     if request.method != "POST":
         return render(request, 'pretixplugins/stripe/oauth_disconnect.html', {})
@@ -671,7 +671,7 @@ class ScaReturnView(StripeOrderView, View):
 
 class OrganizerSettingsFormView(DecoupleMixin, OrganizerDetailViewMixin, AdministratorPermissionRequiredMixin, FormView):
     model = Organizer
-    permission = 'can_change_organizer_settings'
+    permission = 'organizer.settings.general:write'
     form_class = OrganizerStripeSettingsForm
     template_name = 'pretixplugins/stripe/organizer_stripe.html'