Linting for 100% style usage

[alexlafroscia]

• Generate a test for every style.js file within a pod
  • Specifically don't want to add tests for non-pod style.js files
• Fail the test suite if an Emotion class is used that does not exist
• Fail the test suite if there are any classes not consumed in the template
  • This would probably need to be an optional feature (opt out?)
  • If there are any styles defined that are exported by the file but not used in an emotion-class helper, fail the generated test
  • How should would this interact with dynamically setting the value passed into emotion-class?