pagodo (passive google dork) plugin

[cgeopapa]

Added a new plugin called pagodo (PAssive GOogle DOrk).

This plugin starts execution in the background when the osint scan is enabled. It searches for google dork information regarding the target and gathers URLs returned from dorking. Since this scan can take up to many hours it executes in the background without halting the rest execution of Sn1per, it keeps running in the background even after Sn1per has finished executing.

Added two more settings for configuring pagodo, one for enabling the scan and one for using proxy-chains or custom proxy servers for spoofing your IP.

[cgeopapa]

@1N3 did you had the chance to review my PR?

[abnerrizzi]

LGTM