`RoughDraft` codebase reorganization and refactoring

[StartAutomating]

Some of this work is to reduce the number of items in the root directory, which makes the module cleaner:

• [ ] #204
• [ ] #205
• [ ] #206

Other work relates to "bringing RoughDraft up to code", that is, exposing parts of the module in ways that are increasingly standard in other PowerShell codebases.

• [ ] #201
• [ ] #270

Other work relates to adding new sets of capabilities to the module, by utilizing newer features and concepts:

• [ ] #261
• [ ] #250