Moved encryption to its own class

Also made the enc/dec UI better
Moved Ddos command to its class

While cleaning up code, I made the Ddos command call Ddos.DUI with the
Args of the command
Moved Crawl command to its class

The crawl command now goes to Crawl.CUI with the command Args. Just like
what I did to Ddos
Cleaned up code

Also switched the lookup and search commands
Moved encryption to its own class