Naming conventions and tests

[desmondmorris]

What's this PR do?

Per #6, this path renames the core classes accordingly:

Adapter -> Specifiction Engine -> Router ORM -> Storage

This patch also introduces coverage for the Specification & Storage classes and partial coverage for the Ferry class.

How should this be manually tested?

• npm install
• npm test confirm that all tests run and pass
• cd examples/simple && npm start
• open new terminal window and run curl http://localhost:3333/api/v1/pets. This should return 200 and and "[]"

  Any background context you want to provide?

See #6

What are the relevant tickets?

6

Screenshots (if appropriate)

Questions:

Checklist:

• [ ] Code standard review
• [X] Tests included
• [ ] Documentation provided
• [ ] End user documentation provided

  Release Type:

• [ ] Major
• [ ] Minor
• [X] Patch

[joshuajabbour]

Also need to merge https://github.com/ferryjs/ferry-swagger/pull/1