ftp: add ListDirectoryWithTime with change time (#701)

* ftp: add ListDirectoryWithTime with change time

The current ListDirectory command doesn't support the last changed time
of a file or directory. This is a limitation when it comes to using FTP
to download logs.

Therefore, I suggest to add ListDirectoryWithTime here, somewhat similar
to how it was done for in the internet FTP protocol which added the
machine-readable `MLSD` command alongside the original `LIST`.

See: RFC 3659: https://datatracker.ietf.org/doc/html/rfc3659

* docs(mavftp): List Directory with time - run prettier

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Co-authored-by: Hamish Willee <hamishwillee@gmail.com>

Author: julianoes