* Remove unused wc/blocks/cart endpoint
* remove unused withProducts hoc
* Remove getProducts util
* Use store API products endpoint in product blocks
* Remove product endpoint tests
* Remove controller
* Switch attributes endpoint to store api
* Refactor withAttributes to use store API
* Migrate tags and cats to store API
* MIgrate variations to store api
* Migrate reviews to store API
* Drop dedicated variation endpoint
* Move tests
* Move cart init
* Fix reviews
* Comment out broken tests
* Remove old class based with-attributes test
* `use` is never relative - absolute is always used so backslash is not needed
* Move process_legacy_payment code to rest api class
* Move storeapi directory
* Updated namespaces and moved tests