feat: 添加 Windows 环境变量编辑器 GUI 应用程序

- 基于 IUP GUI 库开发 Windows 环境变量编辑器
- 实现 PATH 变量的加载、编辑、保存功能
- 提供新建、编辑、浏览、删除、上下移动路径等操作
- 添加管理员权限检查，确保系统变量修改权限
- 包含完整的项目构建配置（Makefile）和依赖库

path_backup_20260315_224109.txt

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+C:\Program Files\Common Files\Oracle\Java\javapath
+C:\Program Files\dotnet
+C:\Program Files\Microsoft SQL Server\150\Tools\Binn
+C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn
+C:\Program Files\nodejs
+C:\Program Files\NVIDIA Corporation\Nsight Compute 2022.1.0
+C:\Program Files\NVIDIA Corporation\NVIDIA app\NvDLISR
+C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.6\bin
+C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.6\include
+C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.6\lib
+C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.6\libnvvp
+C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common
+C:\Program Files (x86)\Windows Kits\10\Windows Performance Toolkit
+C:\WINDOWS
+C:\WINDOWS\system32
+C:\WINDOWS\System32\OpenSSH
+C:\WINDOWS\System32\Wbem
+C:\WINDOWS\System32\WindowsPowerShell\v1.0
+C:\Users\33644\.dotnet\tools
+C:\Users\33644\AppData\Local\Microsoft\WindowsApps
+C:\Users\33644\AppData\Local\Programs\Python\Python38
+C:\Users\33644\AppData\Local\Programs\Python\Python38\Scripts
+C:\Users\33644\AppData\Roaming\npm
+D:\Microsoft VS Code\bin
+D:\PowerShell\PowerShell-7.5.4
+D:\Program Files (x86)\Graphviz\bin
+D:\Program Files (x86)\Inno Setup 6
+D:\Program Files (x86)\NSIS\Bin
+D:\Program Files (x86)\VMware\VMware Workstation\bin
+D:\Program Files\cmake\bin
+D:\Program Files\JetBrains\PyCharm 2024.1.6\bin
+D:\ProgramData\anaconda3
+D:\ProgramData\anaconda3\bin
+D:\ProgramData\anaconda3\condabin
+D:\ProgramData\anaconda3\Library\bin
+D:\ProgramData\anaconda3\Library\usr\bin
+D:\ProgramData\anaconda3\Scripts
+D:\Python\Python3.8
+D:\Python\Python3.8\Scripts
+D:\settings\Git\cmd
+D:\settings\Java\jdk-25.0.1\bin
+D:\settings\Java\jdk-25.0.1\jre\bin
+D:\settings\MATLAB\R2024a\bin
+D:\settings\MATLAB\R2024a\runtime\win64
+D:\settings\mingw64\bin
+D:\settings\MySQL\MySQL Server 8.0\bin
+D:\settings\MySQL\MySQL Shell 8.0\bin
+D:\settings\settings\apache-maven-3.9.6\bin
+D:\settings\settings\libs\ffmpeg-8.0.1-essentials_build\bin
+D:\settings\settings\libs\GitHub CLI
+D:\settings\settings\libs\SDL\SDL3-3.2.22\x86_64-w64-mingw32\bin
+D:\settings\settings\libs\SDL\SDL3_image-3.2.4\x86_64-w64-mingw32\bin
+D:\settings\settings\libs\uv-x86_64-pc-windows-msvc
+D:\settings\settings\PuTTY
+D:\settings\settings\Scoop\apps\iperf\iperf3.exe
+D:\settings\settings\Scoop\shims
+D:\settings\TortoiseGit\bin
+D:\texlive\2025\bin\windows
+D:\texlive\2025\bin\windows\xelatex.exe