[WFCORE-215] regression test for plain-TCP used in auditlog-to-TLS-syslog handler

Regression test for TLS auditlog to syslog handler issue - https://issues.jboss.org/browse/WFCORE-190

The issue caused for some TLS handler configurations only a plain TCP connection was used.

This PR is a replacement for an older one in WildFly: https://github.com/wildfly/wildfly/pull/6900