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/tests/api/test_checkin.py

@@ -1382,9 +1382,8 @@ def test_checkin_pdf_data_requires_permission(token_client, event, team, organiz
     ))
     assert resp.data['results'][0].get('pdf_data')
     with scopes_disabled():
-        team.can_view_orders = False
-        team.can_change_orders = False
-        team.can_checkin_orders = True
+        team.limit_event_permissions = {"event.orders:checkin": True}
+        team.all_event_permissions = False
         team.save()
     resp = token_client.get('/api/v1/organizers/{}/events/{}/checkinlists/{}/positions/?search=z3fsn8jyu&pdf_data=true'.format(
         organizer.slug, event.slug, clist_all.pk