* add selecting rate resolution state to the cart store
* expose whether rate is being selected on useSelectShippingRate
* Cleanup and refactor ShippingDataProvider
- remove un-needed component and move shipping rates into context provider
- remove error handling (currently the ui/ux for the checkout should result in no errors and any api errors are non-recoverable).
- Add logic for shipping rate selection into context provider and add event emitters for it.
- increment/decrement checkout calculation counts when shipping rates are being selected.
* dispatch checkout error if there is an error
* disable place order button if checkout is calculating or has error
* update doc block
* fix convention for js comment blocks
* Checkout class tidyup
* CheckoutProcessor placeholder
* ShippingMethodDataX to ShippingDataX
* Remove billing from checkout provider
* Remove billing data hook
* Remove billing from payment methods state
* Update typedefs
* Billing context
* Fix billing and shipping context persistence bugs
* Remove address form change
* Move phone back; another PR can deal with this
* Remove unused state
* restructure event-emit directory and convert emitters to promises
- also add emitEventWithAbort function
* implement event emitters as promises
* clean up logic
- return from for loop
- define response as const on each iteration.
- return true if loop completes successfully.
* rename event_emit folder to event-emit
- restructures `@woocommerce/base-context` imports so it pulls from `index.js` in the `base/context` folder. That way tree-shaking will be used if possible. This also helps with organizing the folder structure a bit better for the new contexts.
- Fixes all the various imports through the code due to the above change.
- Adds `CheckoutContextProvider`, `useCheckoutContext` and related files.
- Adds `PaymentMethodDataProvider`, `usePaymentMethodDataContext` and related files.
- Adds `ShippingMethodDataProvider`, `useShippingMethodDataContext` and related files.
- Adds typedefs used for the various context interfaces.
Darren Ethier
Albert Juhé Lluveras
Mike Jolley