substack templates should be logged in debug log level instead of dumping it in a file

[Tushar Patil]

TOSCATranslator->translate method should log substack template in debug log level instead of dumping the contents in a file. It unnecessarily creates a file in the /tmp folder which is not read anywhere in the code.

[nitin uikey (nitinuikey)]

Is there any need to debug these log messages? As the content can be large and flood the logs unnecessarily.