Reporting non-standard errors using "knowledge" file (ATLASJT-408)

Non-standard logging errors inevitably appear in logs and they are left out during scanning. Sometimes they happen to be the main source of a job failure, therefore reporting them is vital for debuting/diagnosing. The idea is that a "knowledge" file consist of these errors (reported by experts) being used as a reference. Once a line is matched with any of errors from the knowledge file, it is reported by adding it to the "FATAL" error message.