Adding Pagination Support

[MajorLeagueDale-1]

Problem

Certain API endpoints support pagination (i.e. Invoices), but the current list functions don't provide sufficient response information to be able to access it.

Example for Pagination

Request

GET https://api.xero.com/api.xro/2.0/Invoices?page=1

Response

{
	"Id": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
	"Status": "OK",
	"ProviderName": "xxxxxxxx",
	"DateTimeUTC": "\/Date(1738629433480)\/",
	"pagination": {
		"page": 1,
		"pageSize": 100,
		"pageCount": 2,
		"itemCount": 113
	},
	"Invoices": [
            ...
        ]
}

Proposed Solutions

Instead of returning the datasets directly, the "ListResponse"object should be returned as a whole and allow the user to handle looking at the returned structure.

This would allow the user to call invoices::list() again and just increment a new ListParameter called page based on the response objects "pagination" field as required.