initialize fdir instance in constructor of FreshDeviceHandlerBase

src/fsfw/devicehandlers/FreshDeviceHandlerBase.cpp

@@ -11,6 +11,7 @@ FreshDeviceHandlerBase::FreshDeviceHandlerBase(DhbConfig config)
       healthHelper(this, getObjectId()),
       paramHelper(this),
       poolManager(this, nullptr),
+	  fdirInstance(config.fdirInstance),
       defaultFdirParent(config.defaultFdirParent) {
   auto mqArgs = MqArgs(config.objectId, static_cast<void*>(this));
   messageQueue = QueueFactory::instance()->createMessageQueue(