[lore-generate-new] add favicon to new projects

[jchansen]

New projects don't include a favicon, which results in this console error the in the browser dev tools:

http://localhost:3000/favicon.ico
Failed to load resource: the server responded with a status of 404 (Not Found)

A favicon should be added to new projects as an example. Some discussion around how create-react-app chose to implement it can be found here, along with issues they found in the process:

facebook/create-react-app#69

[jchansen]

This was resolved as part of #166, alongside the Webpack v2 upgrade, using the favicons-webpack-plugin .