add follow entity dao and xml

Helius

2020-07-29 76c24821c597984767760282301418f35f3cd9d3

 src/main/java/com/xcong/excoin/modules/contract/service/ContractHoldOrderService.java

@@ -42,4 +42,6 @@

    public Result findOrderDetailById(Long id);

    public void calHoldOrderHoldFeeAmount();

}