fix()：车辆报文上报基于模板

src/main/java/com/muyu/vehicle/VehicleInstance.java

@@ -299,6 +299,7 @@ public class VehicleInstance {
         }
         List<MessageTemplateValue> messageTemplateValueList
                 = this.messageTemplate.getMessageTemplateValueList();
+        if (messageTemplateValueList != null){
             for (MessageTemplateValue messageTemplateValue : messageTemplateValueList) {
                 String valueType = messageTemplateValue.getValueType();
                 MessageTemplateValueType messageTemplateValueType
@@ -326,6 +327,7 @@ public class VehicleInstance {
                 }
             }
         }
+    }
 
     /**
      * 更改车辆档位