Method IsDirectory

ImGuiFileDialog.cpp:600–603

        return res;
    }
    bool IsDirectory(const std::string& vFilePathName) override {
        namespace fs = std::filesystem;
        return fs::is_directory(stringToPath(vFilePathName));
    }
    void GetFileDateAndSize(const std::string& vFilePathName, const IGFD::FileType& vFileType, std::string& voDate, size_t& voSize) override {
        namespace fs = std::filesystem;
        fs::path fpath(vFilePathName);