feat: add prepayments webhook endpoint and schema#824

MikeLiuty wants to merge 1 commit into

XeroAPI:masterXeroAPI/Xero-OpenAPI:masterfrom

MikeLiuty:ecoam-5825-add-prepayment-webhookMikeLiuty/Xero-OpenAPI:ecoam-5825-add-prepayment-webhookCopy head branch name to clipboard