feat(settings): Override default settings in settings.py from ~/.owtf
feat(settings): Override default settings in settings.py from ~/.owtf

This will allows developers and users to override constants/settings
specified in settings.py file with a "settings.py" file in ~/.owtf.

owtf/owtf,owtf/owtf,owtf/owtf,owtf/owtf,owtf/owtf