Add a command line option to dump all the tables to a destination directory.

At the moment, the lessmsi command line allows the dumping of a single table to stdout.

I would like a command line option to dump all the tables in the msi to a set of msi files in the specified directory (or an Excel file).

A possible command line might be:
lessmsi t -csv

t : means table output
-csv : use csv format