Refactor wtf_init.py

Hello. This is intended to help clean up the wtf_init.py file and improve its pep8-compliance. 

I refactored the test folder creation into its own method and changed the main project folder creation into a for loop. In general, I think it gives it a cleaner look and I tried not change the base functionality. 

Please let me know if you have any questions or concerns and I'll be happy to discuss them with you.