add price to order and receipt

plugin/dapp/trade/proto/trade.proto

@@ -95,6 +95,8 @@ message SellOrder {
     int32  status    = 12;
     int64  height    = 13;
     string assetExec = 14;
+    string priceExec = 15;
+    string priceSymbol = 16;
 }
 
 // 限价买单数据库记录
@@ -110,6 +112,8 @@ message BuyLimitOrder {
     int32  status            = 9;
     int64  height            = 10;
     string assetExec         = 11;
+    string priceExec = 12;
+    string priceSymbol = 13;
 }
 
 // 执行器日志部分
@@ -127,6 +131,8 @@ message ReceiptBuyBase {
     string txHash            = 11;
     int64  height            = 12;
     string assetExec         = 13;
+    string priceExec = 14;
+    string priceSymbol = 15;
 }
 
 message ReceiptSellBase {
@@ -151,6 +157,7 @@ message ReceiptSellBase {
     string txHash    = 14;
     int64  height    = 15;
     string assetExec = 16;
+    string assetSymbol = 17;
 }
 
 message ReceiptTradeBuyMarket {