- retry logic in swtich2SelfDeliverWithRetry implemented.

- when WaybillStatusCanceled received, will create new waybill when order.WaybillVendorID is unknown.
- don't treat mtps exception msg as failed.
- when waybill delivered msg received, set order delivered anyway.

business/controller/mtps/waybill.go

@@ -48,7 +48,7 @@ func (c *WaybillController) OnWaybillExcept(msg *mtpsapi.CallbackOrderExceptionM
 			WaybillVendorID:  model.VendorIDMTPS,
 			CourierName:      msg.CourierName,
 			CourierMobile:    msg.CourierPhone,
-			Status:           model.WaybillStatusFailed, // todo 这里要再确定一下是否只要收到订单异常消息就视为订单失败
+			Status:           model.WaybillStatusUnknown, // todo 这里要再确定一下是否只要收到订单异常消息就只简单当成一个消息
 			VendorStatus:     utils.Int2Str(msg.ExceptionCode),
 			StatusTime:       utils.Timestamp2Time(msg.Timestamp),
 		}