Name generator/formatter (#897)

* Squash services migrations

* Add name to example service to allow it to be used in tests

* Add name formatter to services

* Add documentation

allianceauth/services/modules/mumble/tasks.py

@@ -2,6 +2,7 @@ import logging
 
 from django.contrib.auth.models import User
 from django.core.exceptions import ObjectDoesNotExist
+from allianceauth.services.hooks import NameFormatter
 
 from allianceauth.celery import app
 from .manager import MumbleManager
@@ -26,6 +27,11 @@ class MumbleTasks:
         logger.info("Deleting all MumbleUser models")
         MumbleUser.objects.all().delete()
 
+    @staticmethod
+    def get_username(user):
+        from .auth_hooks import MumbleService
+        return NameFormatter(MumbleService(), user).format_name()
+
     @staticmethod
     @app.task(bind=True, name="mumble.update_groups")
     def update_groups(self, pk):