Bugfix: Fixed sorting by pvalue and searching

The enrichments are now correctly sorted by pvalue and fixed the multisearchquery
Bugfix: Helper functions take a Iterables instead of a List
Bugfix: ACL information for child entities in Elasticsearch are properly updated

When the permissions of a parent entity was changed and it contains child
entities that inherit those permissions the permissions of those chilld entities
were not updated in Elasticsearch which makes them not visible to the user.
Now the permissions of the child entities are properly updated.