Make it possible to resolve IPv6 host, add some more informative logging

[t-nel-95]

As per the title.

Notes:

If host is a hostname and not a literal address, it will try to resolve IPv6 first.
If you want to avoid this, and explicitly use IPv4, simply resolve the hostname beforehand and pass a literal IPv4 address instead.

# Use resolved address but let FTP.connect() handle the socket
outputMsg += newFtp.connect(host, port, timeout)
self.__addNewConnection(newFtp, connId)
outputMsg += newFtp.login(user, password)

This was done to allow the socket to work on both python 3.12+ and python 3.13.