Added new files missing from the previous commit.

xs/src/slic3r/GUI/TabIface.cpp

@@ -0,0 +1,9 @@
+#include "TabIface.hpp"
+#include "Tab.h"
+
+namespace Slic3r {
+
+void TabIface::load_current_preset() { m_tab->load_current_preset(); }
+void TabIface::rebuild_page_tree() { m_tab->rebuild_page_tree(); }
+
+}; // namespace Slic3r