Add support for documenting FE components

Problem/Motivation

It is clear that we want to be able to document design system components. However there are questions that would need to be worked out:

1. How or where these components would be listed?
2. Does drupal have any awareness of components to use as the source for the list of possible components?
3. What would the alias pattern be for CMDocuments that are documenting Components?

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes