Fixed adding clients from user file. New clearing "Banned IP List" cycle

[hess8]

Previously user file reading was ignored because string_list was always set to the default list. Also the files strings were not stripped of \n, and so never matched torrent clients. Fixed these issues. Added sample file my_clients_to_check.txt

Added a clearing "Banned IP List" interval (hrs) specified by -c flag, which runs the lines created by Sam to clear the list. Made intervals independent of each other for flexibility.

Cleaned up clear_qbittorrent.py from Sam to have only the necessary lines. Renamed to clear_once.py to contrast with the new cycling clear -c option in filter.py.

Updated README.md English version