provide the option to generate scaffolding when creating a new project

[jeffschwartz]

Scaffolding will serve as a reference implementation of Trio's features and also provide the user with a basic project to build upon.

The scaffolding must include the following:

1. A landing page.
2. An about page.
3. A blog including articles with categories, category pages and an archive page.
4. Styling via Sass for all the above.