[Fix]修复飞创期权合约查询问题，富途证券接口退出问题

examples/VnTrader/data/TRADE_MARKET_110100001088sop.dat

@@ -0,0 +1 @@
+v0yuhbdjKS4ZfL61IX4zXw==

examples/VnTrader/data/TRADE_MARKET_110100001088stock.dat

@@ -1 +1 @@
-o/qNWiWU4xYqVMOeeIVgnQ==
+GiYAgGqqW99wdcqcciwrbQ==

vnpy/trader/gateway/futuGateway/futuGateway.py

@@ -353,8 +353,10 @@ class FutuGateway(VtGateway):
     #----------------------------------------------------------------------
     def close(self):
         """关闭"""
-        self.quoteCtx.stop()
-        self.tradeCtx.stop()
+        if self.quoteCtx:
+            self.quoteCtx.stop()
+        if self.tradeCtx:
+            self.tradeCtx.stop()
         
     #----------------------------------------------------------------------
     def initQuery(self):

vnpy/trader/gateway/secGateway/secGateway.py

@@ -1066,7 +1066,7 @@ class SecTdApi(TdApi):
             log.logContent = u'期权交易服务器登录完成'
             self.gateway.onLog(log)
             
-            #self.qryOptionContracts()
+            self.qryOptionContracts()
 
         # 否则，推送错误信息
         else: