dir structure changed

src/system/parts.hpp

@@ -0,0 +1,19 @@
+#ifndef _PARTS_HPP_
+#define _PARTS_HPP_
+
+#include "syselmts.hpp"
+
+class Part : public SystemElement
+{
+public:
+    Part(std::string name);
+};
+
+class Parts : public SystemElementContainer<Part>
+{
+public:
+    Parts(void);
+    Parts(std::vector<Part> parts);
+};
+
+#endif // _PARTS_HPP_