Enhance bulk-o-matic for bulk addition of tables

Bulk-o-matic is used as a test driver to check the controller's clustering capabilities. One of the tests is to verify the Pre-Leader state.

To carry out the test, it is required that there should be a way to create tables first and flows later. Also addition of a flow should be possible only when the corresponding tables are present (parent should exist before addition of the child).

Currently bulk-o-matic can add flows, but not add/delete tables. It will be great if there is a way to add tables in bulk.