Ability to disable wizer

Would be great if there would be a flag to disable wizer. Wizer doesn't allow calling any imported functions during initialization, but sometimes for debugging, that can be pretty helpful.

Trace the command-line entry point and the code that invokes Wizer, then check how existing flags are defined and tested. Add a flag that skips Wizer initialization when requested, while preserving the current behavior by default; done means debugging can permit imported functions during initialization.

Written by the indexing model from the issue text.