Choo application setup and first elements.

Choo generalizing your elements. Choo linting with eslint. Choo cleaning up home page. Choo saving data in localStorage. Choo editing and deleting records. Choo form validation. Choo version 5 Adding Firebase database to our choo application Testing the use of the firebase db Choo is "another" front end JS framework but takes a "more" functional approach to building UI's than other frameworks out there.