* Order should include purchase_units
* PayerWithNameAndPhone needs Address for Order
* add SellerProtection to CaptureAmount
* add RecipientType(s)
* add RecipientType(s)
* BatchHeader.BatchStatus values
* Update billing plan
* Update billing plan
* Update billing plan
* Kickstart product creation
* Added product api
* Added list product api and refactored some similar structs
* Reverted endpoint for old billing plans
* Added subscription plans create get update list
* Added subscription plans activate/deactivate/update pricing scheme
* Added integration tests for subscription plans
* go fmt
* Add subscriptions API
* Removed AWS library added by mistake
* reverted billing plans url
* resolved MR discussions
* Fixed but in listing subscription plans, and some constants
* Fixed wrong type for subscription plan description
* Fixed updating issue
Co-authored-by: rami <admin@okitoo.net>
