address warnings and errors

include/create/serial_query.h

@@ -68,6 +68,7 @@ namespace create {
 
     public:
       SerialQuery(std::shared_ptr<Data> data, bool install_signal_handler = true);
+      virtual ~SerialQuery() = default;
   };
 }  // namespace create
 

include/create/serial_stream.h

@@ -73,6 +73,7 @@ namespace create {
         std::shared_ptr<Data> data,
         const uint8_t& header = create::util::STREAM_HEADER,
         bool install_signal_handler = true);
+      virtual ~SerialStream() = default;
 
   };
 }  // namespace create