update createbrandingthemepaymentservices method and bump version

[RettBehrens]

Description

Updates CreateBrandingThemePaymentServices method to accept an array of PaymentService objects instead of just one PaymentService object to match API functionality

Release Notes

Resolves Xero-Node #605

This will result in a small breaking change where any projects currently using this method will need to wrap their PaymentService object in a PaymentServices object like so:

{ "PaymentServices": [ { "PaymentServiceID": "54b3b4f6-0443-4fba-bcd1-61ec0c35ca55", "PaymentServiceName": "PayUpNow", "PaymentServiceUrl": "https://www.payupnow.com/", "PaymentServiceType": "Custom", "PayNowText": "Time To Pay" } ] }

Types of Changes

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)