Move util files to own namespace

aleksis/apps/untis/management/commands/untis_import.py

 from django.core.management.base import BaseCommand
 from django.utils.translation import ugettext as _
 
-from ...util import untis_import_xml
+from aleksis.apps.untis.util.xml.xml import untis_import_xml
 
 
 class Command(BaseCommand):

aleksis/apps/untis/menus.py

@@ -3,7 +3,7 @@ from django.utils.translation import ugettext_lazy as _
 MENUS = {
     "DATA_MANAGEMENT_MENU": [
         {
-            "name": _("Units import"),
+            "name": _("Untis import"),
             "url": "untis_import",
             "validators": [
                 "menu_generator.validators.is_authenticated",

aleksis/apps/untis/events.py → aleksis/apps/untis/util/mysql/events.py

@@ -4,7 +4,7 @@ from schoolapps.settings import TIMETABLE_HEIGHT
 from .drive import drive
 from .api_helper import untis_date_to_date, date_to_untis_date
 from .api import row_by_row_helper, run_all, get_absence_by_id
-from . import models
+from aleksis.apps.untis import models
 
 
 #########

aleksis/apps/untis/views.py

@@ -5,12 +5,12 @@ from django.shortcuts import render
 from aleksis.core.decorators import admin_required
 
 from .forms import UntisUploadForm
-from .util import untis_import_xml
+from aleksis.apps.untis.util.xml.xml import untis_import_xml
 
 
 @login_required
 @admin_required
-def untis_import(request: HttpRequest) -> HttpResponse:
+def xml_import(request: HttpRequest) -> HttpResponse:
     context = {}
 
     upload_form = UntisUploadForm()