添加 PandaGL 的 border 部分。

[GregoryLi0]

待办：

• [ ] 更新 LCUI 的 xmake.lua
• [ ] 替换旧图形模块相关数据结构，例如：LCUI_Graph
• [ ] 替换旧图形模块相关函数调用代码，例如：Graph_Create
• [ ] 替换旧图形模块的头文件包含代码，例如：#include <LCUI/graph.h>
• [ ] 替换盒阴影绘制相关代码
• [ ] 替换边框绘制相关代码
• [ ] 替换背景绘制相关代码
• [ ] 删除旧图形模块的构建配置和相关代码
• [ ] test_render 运行正常，无性能降低、花屏、色彩异常等问题
• [ ] test_border 运行正常，圆角边框平滑，背景填充正常，无锯齿、色彩异常、背景缺失等问题
• [ ] test_box_shadow 运行正常，阴影渐变平滑，无锯齿、色彩异常等问题
• [ ] helloworld 运行正常，无残影、卡顿、花屏、颜色异常等问题
• [ ] run-tests 运行正常，通过所有测试

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