add missing file

lib/queue/GwSynchronized.h

@@ -0,0 +1,17 @@
+#pragma once
+#include <freertos/semphr.h>
+
+class GwSynchronized{
+    private:
+        SemaphoreHandle_t *locker;
+    public:
+        GwSynchronized(SemaphoreHandle_t *locker){
+            this->locker=locker;
+            xSemaphoreTake(*locker, portMAX_DELAY);
+        }
+        ~GwSynchronized(){
+            xSemaphoreGive(*locker);
+        }
+};
+
+#define GWSYNCHRONIZED(locker) GwSynchronized __xlock__(locker);