LMS: Developer-centric Sass Area

[talbs]

This work adds in a known area for developers to add in new Sass, especially when needed and the current styling/UI patterns cannot support the features and bugs they are actively working on. Benefits of this include:

• a known area in the cascade where styles will be inherited
• a designated area for developer use and design visual polishing and front end re-factoring (rather than hunting through the entire codebase).
• a location for developers to learn, request post-production support, receive feedback on any front end work, and ask questions of designers.

[talbs]

@marcotuts and @sarina (or @adampalay), mind giving this unused, but hopefully helpful down the road area, your blessing?

[adampalay]

cool. pending failing tests, 👍

[sarina]

👍 once tests pass

[talbs]

Bringing this to "Mergetown".