added elevator support

params/ToolBoxWidget.h

@@ -38,6 +38,7 @@ private:
 	QPushButton* btnPillar;
 	QPushButton* btnDoor;
 	QPushButton* btnStair;
+	QPushButton* btnElevator;
 
 	QPushButton* btnWifi;
 	QPushButton* btnBeacon;
@@ -54,6 +55,7 @@ private slots:
 	void onNewPillar();
 	void onNewDoor();
 	void onNewStair();
+	void onNewElevator();
 
 	void onNewAccessPoint();
 	void onNewBeacon();