Yo! External trackers with multi-threaded scraper

[AlaminT]

https://github.com/yunasc/tbdev/comm...bc9e9132f1e642

Check this mine commit ))
But don't forget to update for newer commits.

This scraper support UDP tracker scraping, as well it's mutithreaded (self-connect using curl_multi).

So, even if one tracker is down -> execution will be no bigger than longest request to complete.