Persist MaskTask runner log files

When a MaskTask runner encounters an error, the process is that is will shut down the MaskTask runner process. During the shutdown, the temp folder created to contain the task runner information, including the log created to contain additional information, is deleted. This is to avoid accumulation of folder/files. For example, when an error was encountered this was in the MAS log file:

Oracle bulk load completed with a warning return code. This means that some rows were discarded or rejected, or the load was discontinued. See log for details: C:\Users\serviceuser\AppData\Local\Temp\MAS99999\9999999999999.log]



If investigation is needed, since the log file no longer exists, we would like these logs to be saved for further investigation.