Add successful IP threshold limit to cPhulk

As a server administrator I would like the ability to define an alert/ban threshold of authenticated IP addresses in cPHulkD in order to block potentially compromised cPanel accounts.

For example, if I set a threshold of 3, and 4 different IPs all successfully authenticate to the same cPanel account within a short period, then I would like to see cPHulkD react as the account is likely compromised by hackers (especially if the IPs are geographically distinct). This is especially true when discussing a compromised email account. Once an email account becomes compromised, you'll often have quickly have 6+ IPs all using it to send out spam.

cPanel will then help stop accounts which have become compromised by hackers from being accessed as well.