Unicode file/dir name bug fix

[wellshsu]

• add 'utf8_to_gb' func into commands.cpp

static std::string utf8_to_gb(const char* str)
{
	std::string result;
	WCHAR* strSrc;
	LPSTR szRes;

	int i = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0);
	strSrc = new WCHAR[i + 1];
	MultiByteToWideChar(CP_UTF8, 0, str, -1, strSrc, i);

	i = WideCharToMultiByte(CP_ACP, 0, strSrc, -1, NULL, 0, NULL, NULL);
	szRes = new CHAR[i + 1];
	WideCharToMultiByte(CP_ACP, 0, strSrc, -1, szRes, i, NULL, NULL);

	result = szRes;
	delete[]strSrc;
	delete[]szRes;

	return result;
}

• modify 'get_encrypted_files' func in commands.cpp

	while (ls_files_stdout->peek() != -1) {
		std::string		mode;
		std::string		object_id;
		std::string		stage;
		std::string		filename;
		*ls_files_stdout >> mode >> object_id >> stage >> std::ws;
		std::getline(*ls_files_stdout, filename, '\0');
		filename = utf8_to_gb(filename.c_str()).c_str();

• modify 'status' func in commands.cpp

	while (output.peek() != -1) {
		std::string		tag;
		std::string		object_id;
		std::string		filename;
		output >> tag;
		if (tag != "?") {
			std::string	mode;
			std::string	stage;
			output >> mode >> object_id >> stage;
			if (!is_git_file_mode(mode)) {
				continue;
			}
		}
		output >> std::ws;
		std::getline(output, filename, '\0');
		filename = utf8_to_gb(filename.c_str()).c_str();

• rebuild binary and done.