Arrange is accounting for the wipe tower now

src/slic3r/GUI/GLCanvas3D.hpp

@@ -4,6 +4,7 @@
 #include <stddef.h>
 #include <memory>
 
+#include "libslic3r/ModelArrange.hpp"
 #include "3DScene.hpp"
 #include "GLToolbar.hpp"
 #include "Event.hpp"
@@ -608,6 +609,9 @@ public:
     int get_move_volume_id() const { return m_mouse.drag.move_volume_idx; }
     int get_first_hover_volume_idx() const { return m_hover_volume_idxs.empty() ? -1 : m_hover_volume_idxs.front(); }
 
+    arr::WipeTowerInfo get_wipe_tower_info() const;
+    void arrange_wipe_tower(const arr::WipeTowerInfo& wti) const;
+
     // Returns the view ray line, in world coordinate, at the given mouse position.
     Linef3 mouse_ray(const Point& mouse_pos);