create split zip file merge files and folders

[lzxshare]

the zip function createSplitZipFile(List<File> filesToAdd, ZipParameters parameters, boolean splitArchive, long splitLength)，when the parameter filesToAdd contains file and folders，the zip4j only deal with file, the files in the folder are not included,it only keep a empty folder in zip. can you add the files in the folder and keep the directory structure when we use createSplitZipFile(List<File> filesToAdd, ZipParameters parameters, boolean splitArchive, long splitLength) this function？