* Create useShippingAsBilling attribute
* Fix missing prop
* Refactor FormStep so stepNumber is generated by CSS instead of being passed as a prop
* Add billing address form
* Add text before controls
* Remove old @todo comment
* Rename checkout classes from 'wc-blocks-checkout' to 'wc-block-checkout'
* Rename form components classes from 'wc-blocks-checkout' to 'wc-block-checkout'
* Rename 'wc-components' class names to 'wc-block'
* introduce form steps
* add last step
* add prop types
* fix css color variable naming
* add label for a11y
* use :last-child
* white space
* use direct args in classnames
* typo
* rename ids for steps
* fix line height to match title
Co-Authored-By: Albert Juhé Lluveras <aljullu@gmail.com>
* heading-content
* rename css var
* move vars to file
* move components within file
* move imports
* rename prop name to kebabCase
* update prop name
* make components responsive with storefront
* fix some compatiblity problems with 2020
* battle in the CSS ground
* move import to correct place
* turn stepHeadingContent to render prop
* styling
Albert Juhé Lluveras
Seghir Nadir