General ledger categories improvements in bills and invoices

We have added the capability for adding a chart of accounts to your bill and invoices.

• Bills: When you create or update a bil, you can now set the payFromChartOfAccountId field as the BILL-generated ID of the chart of accounts for the bill payment.
• Invoices: When you create or update an invoice, you can now set the payToChartOfAccountId field as the BILL-generated ID of the chart of accounts for the invoice payment.