Add the same margin to wxBitmapToggleButton as to wxBitmapButton

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57906 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/osx/carbon/tglbtn.h

@@ -51,6 +51,9 @@ public:
 private:
     wxBitmap m_bitmap;
 
+    int m_marginX,
+        m_marginY;
+        
 protected:
     virtual wxBorder GetDefaultBorder() const { return wxBORDER_NONE; }
     virtual wxSize DoGetBestSize() const;