backup of https://hosts-file.net/ad_servers.txt
forked from https://github.com/fredprod/host-file.net-backup
including web.archive.org for hjk, hfs, and pup https://web.archive.org/web/20200308144426if_/https://hosts-file.net/ad_servers.txt
Add other files found WaLLy3K/wally3k.github.io#91