[reload4j] Tests rewrite

Hello all, After two days of work, I am happy to report that almost all tests have been migrated to the standard structure. Out of 621 tests "only" 8 fail. These last remaining reoad4j tests will be updated on Wednesday. To be continued. -- Ceki Gülcü Please contact suppport(at)qos.ch for donations, sponsorship or support contracts related to SLF4J or logback projects.