feat(gui): 迁移图形界面库从SDL3到IUP

- 移除SDL3依赖，引入IUP图形界面库
- 更新Makefile以支持IUP编译配置
- 重构GUI模块，移除SDL相关代码
- 更新全局变量和类型定义，移除SDL依赖
- 添加IUP头文件到项目库目录
- 删除手动帧率控制(SDL_Delay)，依赖IUP事件循环
- 更新编译脚本和文档说明

libs/iup-3.31_Win64_dllw6_lib/include/iup_mglplot.h

@@ -0,0 +1,70 @@
+/** \file
+ * \brief Plot component for Iup.
+ *
+ * See Copyright Notice in "iup.h"
+ */
+ 
+#ifndef __IUP_MGLPLOT_H 
+#define __IUP_MGLPLOT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Initialize IupMglPlot widget class */
+void IupMglPlotOpen(void);
+
+/* Create an IupMglPlot widget instance */
+Ihandle* IupMglPlot(void);
+
+/***********************************************/
+/*           Additional API                    */
+
+/* Linear Data Only */
+void IupMglPlotBegin(Ihandle *ih, int dim);
+void IupMglPlotAdd1D(Ihandle *ih, const char* name, double y);
+void IupMglPlotAdd2D(Ihandle *ih, double x, double y);
+void IupMglPlotAdd3D(Ihandle *ih, double x, double y, double z);
+int  IupMglPlotEnd(Ihandle *ih);
+
+/* Linear (dim=1,2,3), Planar (dim=1), Volumetric (dim=1) */
+int IupMglPlotNewDataSet(Ihandle *ih, int dim);
+
+/* Linear Data Only */
+void IupMglPlotInsert1D(Ihandle* ih, int ds_index, int sample_index, const char** names, const double* y, int count);
+void IupMglPlotInsert2D(Ihandle* ih, int ds_index, int sample_index, const double* x, const double* y, int count);
+void IupMglPlotInsert3D(Ihandle* ih, int ds_index, int sample_index, const double* x, const double* y, const double* z, int count);
+
+/* Linear Data Only */
+void IupMglPlotSet1D(Ihandle* ih, int ds_index, const char** names, const double* y, int count);
+void IupMglPlotSet2D(Ihandle* ih, int ds_index, const double* x, const double* y, int count);
+void IupMglPlotSet3D(Ihandle* ih, int ds_index, const double* x, const double* y, const double* z, int count);
+void IupMglPlotSetFormula(Ihandle* ih, int ds_index, const char* formulaX, const char* formulaY, const char* formulaZ, int count);
+
+/* Linear (dim=1), Planar (dim=1), Volumetric (dim=1) */
+void IupMglPlotSetData(Ihandle* ih, int ds_index, const double* data, int count_x, int count_y, int count_z);
+void IupMglPlotLoadData(Ihandle* ih, int ds_index, const char* filename, int count_x, int count_y, int count_z);
+void IupMglPlotSetFromFormula(Ihandle* ih, int ds_index, const char* formula, int count_x, int count_y, int count_z);
+
+/* Only inside callbacks */
+void IupMglPlotTransform(Ihandle* ih, double x, double y, double z, int *ix, int *iy);
+void IupMglPlotTransformTo(Ihandle* ih, int ix, int iy, double *x, double *y, double *z);
+
+/* Only inside callbacks */
+void IupMglPlotDrawMark(Ihandle* ih, double x, double y, double z);
+void IupMglPlotDrawLine(Ihandle* ih, double x1, double y1, double z1, double x2, double y2, double z2);
+void IupMglPlotDrawText(Ihandle* ih, const char* text, double x, double y, double z);
+
+void IupMglPlotPaintTo(Ihandle *ih, const char* format, int w, int h, double dpi, void *data);
+
+/***********************************************/
+
+/* Utility label for showing TeX labels */
+Ihandle* IupMglLabel(const char* title);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif