Introduce an Architectural Decision Record about the boundaries
and responsibilities of Studio (Content Authoring) and the LMS
(Learning Experience). These are not new ideas. This is just
explicitly writing down the many local decisions that have been
made for years (Block Transformers, edx-when, grading, etc.), and
showing how they add together to a set of high level principles.
I hope to eventually have docs describing Studio/LMS's relation
to other subdomains in Open edX.
