Arch Docs Improvements

[lautarodragan]

WIP, ignore for now.

TODO

• [ ] src/index.ts
• [ ] src/app.ts
• [x] Service Layers
  • [x] Composition Root
  • [x] Router
  • [x] Controller
  • [x] DAO
  • [x] Service
• [ ] Files that live outside services
  • [ ] Configuration
  • [ ] Helpers
  • [ ] Messaging
  • [ ] Helpers
• [ ] Tests
  • [ ] Unit
  • [ ] Integration
  • [ ] Functional
• [ ] Logging
• [ ] Code Style
  • [ ] Piping

Resolves https://github.com/poetapp/node/issues/239