Add manageable banlist

[Lore09]

Add a new dashboard panel where you can manage the detected attacker IPs.

Possible features:

• unban IP categorized as attacker
• force new IP into the banlist
• show scheduled job for attacker IPs analysis

Possible implementation

New db entry on ip_stats table ban_override, boolean and nullable. The export banlist job fetches the valorized ip entry and adjusts the exported banlist accordingly.
The api needs to be secured.