Major Description
The MVS file system requires to change directory to starting path and use CD to traverse file path instead of using listFile(path) as currently done in camel-ftp.
This means we should walk the path using code like:
0. remember path
1. cd path
2. list files()
3. loop files
4. if dir then goto 1
5. if file add file
6. when done cd back to "remember path"