Add Admin Order Note for Amazon Pay Order Cancellations and Payment Failures

[ChristianAF]

Describe the bug When a user cancels an order after placing it using Amazon Pay or when a credit card or payment method is declined, an order note should be added to the admin section. This will help the merchant understand the reason for the payment issue or cancellation.

To Reproduce Steps to reproduce the behavior: When using Amazon Pay express checkout select one of these payments methods:

Screenshots

Expected behavior Orders note should be added to clarify what was the problem.

Isolating the problem (mark completed items with an [x]):

• [x] I have deactivated other plugins and confirmed this bug occurs when only the extension is active.
• [x] I can reproduce this bug consistently using the steps above.