Add unknown interface logging on the Wine side

src/wine-host/bridges/vst3.cpp

@@ -40,6 +40,8 @@ Vst3Bridge::Vst3Bridge(MainContext& main_context,
                        std::string plugin_dll_path,
                        std::string endpoint_base_dir)
     : HostBridge(plugin_dll_path),
+      generic_logger(Logger::create_wine_stderr()),
+      logger(generic_logger),
       main_context(main_context),
       sockets(main_context.context, endpoint_base_dir, false) {
     std::string error;