Set up wishlists.feature

[aklufas]

As a developer I need to be able to run BDD tests So that I can confirm that my micro service works

Assumptions:

• To use gherkin syntax and REST APIs are already set up. There is a wishlist_step.py file that already exists

Acceptance Criteria:

Given a REST API and a wishlist_step.py
When I use gherkin syntax to write BDD tests
Then I will be able to confirm that my micro service works