Provide module for Infinispan Directory that satisfies the slot "for-hibernatesearch-5.5"

Wildfly 10.0.0 internal hibernate search engine has an optional dependency to

<!-- Infinispan extensions - provided as separate download by the Infinispan project -->
<module name="org.infinispan.hibernate-search.directory-provider" slot="for-hibernatesearch-5.5" services="import" optional="true"/>

But as described in ISPN-6537 this dependency is not correctly satisfied by the modules zip, forcing users who depends on hibernate from wildfly to use the ispn-8.1 slot and thus another version of hibernate search