Exposing way to parse arguments

[cktricky]

Could use a way to pass into arguments to our step_ methods.

• 1. Way to document options to pass into step
• 2. Parsing the arguments sanely

[cktricky]

Fixed in https://github.com/carnal0wnage/weirdAAL/commit/099707ae29aa70cb648ed292d7ff2258d24b03bb