Verbose option should probably be deprecated

[sundar-mudupalli-work]

Hi,

Data Validation Tool has a very good way of printing information to troubleshoot and debug and that is by using -ll=DEBUG. We also have the verbose option -v. It is sparingly used and is used primarily to print the queries. I suggest we deprecate this option and move all such usage to logging.debug. The code has some strange structure as follows:

        if self.verbose:
            logging.info(target_config)

If the user specified verbose -v, then the information is logged at the info level, otherwise it is not. Best to replace these with logging.debug and get rid of the -v or quietly change it to -ll=DEBUG under the covers.

Sundar Mudupalli