Huobi: Fix sending trades to the websocket DataHandler (#1817)

* Send trades down the DataHandler

* Send individual trades down the DataHandler

Update the test to send the multiple trades
Remove the ID setting to 0 in the test
Iterate through the trades to send them down individually
Rename the test to match the method

* Fix the timestamp conversion

* Fix the wording

* Update the expected data format

* Update the test name and description

* Fix error case

testdata/configtest.json

@@ -1872,7 +1872,9 @@
     },
     "enabled": {
      "autoPairUpdates": true,
-     "websocketAPI": true
+     "websocketAPI": true,
+     "saveTradeData": false,
+     "tradeFeed": true
     }
    },
    "bankAccounts": [