* Include shipping and billing address data in cart schema
* update cart hook (and data api) with new properties from endpoint
* add use-shipping-address hook and implement in use-shipping-rates
* update usages of useShippingRates through code
* update tests for use-shipping-rates
* update use-payment-method-interface and typedef to remove country field
This is provided reliably via the shippingAddress now.
* restore pluck comparison to effect.
Also added some clarification docs for why `iniitalAddress` is not included in the effect dependencies.
* remove billingAddress from cart schema
* clear city and postcode when changing country
* Update REST Api schemas aftere rebase
- CustomerSchema no longer exists
- Added ShippingAddressSchema implemented by Cart and Order schemas
- fix broken js because of bad merge conflict resolution.
* remove duplicate keys
Darren Ethier