Split acls models module into models, managers, classes and api

apps/acls/api.py

@@ -0,0 +1,13 @@
+from django.contrib.contenttypes.models import ContentType
+
+_class_permissions = {}
+
+
+def class_permissions(cls, permission_list):
+    stored_permissions = _class_permissions.setdefault(cls, [])
+    stored_permissions.extend(permission_list)
+
+
+def get_class_permissions_for(obj):
+    content_type = ContentType.objects.get_for_model(obj)
+    return _class_permissions.get(content_type.model_class(), [])