Add placeholder hero banner.
Add css file for index page.
Add global variables sass file.

This file should hold variables that are shared across style sheets.
Add skins sass file.

This sass file will hold styles that theme the page. Currently this
has styles for buttons and font sizes and weights.
Add sass file for index page.
Switch roboto font file to use http instead of https.
Add assets configuration for index page.

Assets for controllers are listed as an object that have three
possible types: "css", "js", "blob". Each type has an array of
files that have a location to put it (top or bottom).
Give app controller the ability to load controller specific assets.

Controllers can specify thier related assets in the routes.json file.
Assets will be an object that specifies the assets to load.
Update ass styles.
Add w-100 class for width:100%.
Update index with placeholder banner and text.
Update readme with assets config.
Add README for routes.json configuration.