Create an Auxiliary Module Hierarchy for Category Documentation

[iamrecursion]

Summary

We need some flexible way to display documentation for the "categories" in the new searcher (#1753). A way to do this that only involves existing machinery is to create an additional library under Standard that contains only documentation.

Value

We have a mechanism for updating the category documentation that is not hard-coded into the IDE, and utilises the existing mechanisms for displaying and rendering documentation.

Specification

• Create a new library Standard.Searcher that integrates with the editions system like all other libraries.
• Describe the categories that we actually want with a brief blurb about what kind of things are envisioned to go in each. CC @wdanilo for specifying this.
• Describe briefly what kinds of examples you want to see in these high level categories.
• Implement a hierarchy of modules in this library, mapping spaces in the names to underscores in the module names.
• In each of these modules, write comprehensive documentation with examples for what these areas allow you to do.

Acceptance Criteria & Test Cases

• We have an auxiliary library that provides the documentation through the standard mechanisms for the new portion of the searcher.