Add SOCKS5 Proxy support

[sectroyer]

In regards to closing this: #347
I would like to request adding this feature as it's extremely useful for pentesters especially when access to final (tested) host is restricted. Often only RDP and SSH connections are allowed.

[jtesta]

Ok, I've re-opened it. My apologies for closing it! As long as a real human would benefit from the feature (and as long as it doesn't introduce an undue maintenance burden), I'd be happy to consider it!

[sectroyer]

No issue I am happy we were able to understand each other:) I don't know the project internals in details so I used AI to help with a patch. From what I checked it doesn't look to be intrusive. However if you have other idea of implementing it that also would be great. I just tried to help as much as I could. Since I very often use your tool in environments that require proxy I would appreciate such improvement.