feature: add source address support via paramiko sock

[mzsombor]

Hi,

I often find myself working on a multi-interface environment to reach different networks.

With paramiko I'm able to achieve this feature using the sock argument:

• https://docs.paramiko.org/en/stable/api/client.html
• https://docs.python.org/3/library/socket.html#module-socket

I was tinkering with the code and managed to integrate this functionality in your project.

I hope you don't mind and if you find it useful it would be nice to have this feature in the original project. If not, I hope this will be helpful for others who are looking for similar functionalities.

Thank you!