添加虚拟文件系统（VFS）类以支持压缩文件的读取和管理，更新CMake配置以包含libzip子模块

vfs.hpp

@@ -0,0 +1,26 @@
+#include "zip.h"
+#include <list>
+#include <string>
+#include <unordered_map>
+#include <Windows.h>
+
+class VFS {
+    public:
+        VFS();
+        ~VFS();
+        bool AddArchive(std::string path);
+        bool ContainsFile(std::string path);
+        bool ContainsFile(std::wstring path);
+        bool ContainsHandle(HANDLE hFile);
+        HANDLE CreateFileW(std::wstring path);
+        bool ReadFile(HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead, LPDWORD lpNumberOfBytesRead);
+        void CloseHandle(HANDLE hFile);
+        DWORD GetFileSize(HANDLE hFile, LPDWORD lpFileSizeHigh);
+        DWORD SetFilePointer(HANDLE hFile, LONG lDistanceToMove, PLONG lpDistanceToMoveHigh, DWORD dwMoveMethod);
+        std::unordered_map<std::string, zip_uint64_t> files;
+        std::string GetBasePath();
+    private:
+        std::string base_path;
+        std::list<zip_t*> archives;
+        std::unordered_map<HANDLE, std::string> handles;
+};