Refund from capture endpoint function (#141)

* Capture refund API call

* .

Added GetSubscriptionDetails method (#135)

* Issue #133

Added GetSubscriptionDetails method

* Issue #133

Include the 'items' in the response when capturing orders

Print error details in addition to message and http code (#131)

* Print error details in addition to message and http code

* %v -> %+v

Update item struct to match paypal model (#129)

* Update item struct to match paypal model

* test

v3.0.9

Update payment capture response type to include links (#128)

Add partner overrides to referral request (#124)

* Add partner overrides to referral request

Add this object:
https://developer.paypal.com/docs/api/partner-referrals/v2/#definition-partner_configuration_override

* Update types.go

Add types to support Partner Referral API (#123)

* Add types to support Partner Referral API

Add in the type structs to allow a POST call to v2/customer/partner-referrals
It sends a ReferralRequest, and returns a response of type Resource with only Links populated
https://developer.paypal.com/docs/api/partner-referrals/v2/

* Pointer for optional field

* Update types.go

Co-Authored-By: Roopak Venkatakrishnan <[email protected]>

Add Webhook data types (#120)

* Add Webhook data types

Add the Event data types for payment capture and merchant onboarding events, which are sent for PayPal Commerce Platform integrations.

* remove unnecessary empty line

* name change and points for omitempty objects

* Update types.go

Co-Authored-By: Roopak Venkatakrishnan <[email protected]>

Fix authorizations (#119)

Fix authorizations