Updating the validator method of genfsr QMTest.
Previous method: matching the counter values w.r.t a reference logFile. Problem: reference has to be continuously manually updated.
New method consists in 4 qmt tests, with the aim to compare the GeneratorLogFSR.xml created runtime with the ones obtained reading the genFSR persisted in .gen files. (both for creation and merging of the genFSR)