Add the full source of BambuStudio

using version 1.0.10

src/libslic3r/Fill/FillConcentric.hpp

@@ -0,0 +1,27 @@
+#ifndef slic3r_FillConcentric_hpp_
+#define slic3r_FillConcentric_hpp_
+
+#include "FillBase.hpp"
+
+namespace Slic3r {
+
+class FillConcentric : public Fill
+{
+public:
+    ~FillConcentric() override = default;
+
+protected:
+    Fill* clone() const override { return new FillConcentric(*this); };
+	void _fill_surface_single(
+	    const FillParams                &params, 
+	    unsigned int                     thickness_layers,
+	    const std::pair<float, Point>   &direction, 
+	    ExPolygon     		             expolygon,
+	    Polylines                       &polylines_out) override;
+
+	bool no_sort() const override { return true; }
+};
+
+} // namespace Slic3r
+
+#endif // slic3r_FillConcentric_hpp_