* Update all wc-admin endpoints to v4
* Add namespace for products and customers controllers
* Include product quantity in orders data store
* Add coupons to extended data in the orders data store
* Format order statuses response from database
* Hook up orders table to orders endpoint
* Add namespace to data endpoint controller
* Add namespaces to remaining extended controllers
* Use NAMESPACE var in place of wc/v4
* Update product links in orders table to products reports
* Add coupons rest controller override
* Format coupon code in response
Co-Authored-By: joshuatf <joshuatf@gmail.com>
* Add store performance REST API endpoint
* Clean up validation, add list of allowed stats to OPTIONS endpoint, and rename endpoint to performance-indicators
* Add tests
* Add additional filters to make extending the performance indiciators area easier.
* Add docblocks for filters
Ron Rennick
Jeff Stieler
Justin Shreve
Joshua T Flowers