Wipe tower brim width is now part of WipeTowerData class, so it can be used wherever needed

src/libslic3r/GCode/WipeTower.hpp

@@ -92,6 +92,7 @@ public:
 	void generate(std::vector<std::vector<ToolChangeResult>> &result);
 
     float get_depth() const { return m_wipe_tower_depth; }
+    float get_brim_width() const { return m_wipe_tower_brim_width; }
 
 
 
@@ -203,6 +204,7 @@ private:
     Vec2f  m_wipe_tower_pos; 			// Left front corner of the wipe tower in mm.
 	float  m_wipe_tower_width; 			// Width of the wipe tower.
 	float  m_wipe_tower_depth 	= 0.f; 	// Depth of the wipe tower
+    float  m_wipe_tower_brim_width     = 0.f; 	// Width of brim (mm)
 	float  m_wipe_tower_rotation_angle = 0.f; // Wipe tower rotation angle in degrees (with respect to x axis)
     float  m_internal_rotation  = 0.f;
 	float  m_y_shift			= 0.f;  // y shift passed to writer