Develop metric: Living Wage - Job Opportunities

[Georg J.P. Link]

We will be developing this metric first in a google doc and then merge it into our repository.

https://docs.google.com/document/d/1KN5p5SxIHP3ZYcNt8AKv8JpVRcagn5yTzL68VvFVKPY/edit?usp=sharing