FIX: [STUDIO-3329] show/hide thirdparty calibrate button

Change-Id: Ie5a7cd454b50617af8c8bf9c78fecc60386e4e9d
(cherry picked from commit 1a98981f8b0a854f431d9430355b4fc5d2bb4fb1)

src/slic3r/GUI/BBLTopbar.hpp

@@ -54,6 +54,8 @@ public:
 
     void SaveNormalRect();
 
+    void ShowCalibrationButton(bool show = true);
+
 private:
     wxFrame* m_frame;
     wxAuiToolBarItem* m_file_menu_item;