add contract money info interface

wzy

2020-06-03 c356816bb9969fc5cde71b670461d9ddf7534e8f

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

@@ -34,4 +34,6 @@

    public Result changeBond(ChangeBondDto changeBondDto);

    public Result findContractMoneyInfo(String symbol);

}