WatchYourLAN with script-hack arp-scan replacment

[andrewlow]

Hopefully I'm not stepping on any toes, I'm a big fan of the simplicity of the WatchYourLAN project. I was also very pleased to see that VLAN support had been added.

I do have VLANs setup, but want to run WatchYourLAN on a machine that is only on one of the LANs - so I needed a hack/patch. The other use case would be someone wanting to avoid using the --network:host flag - and just ssh to the right host.

Thus my psuedo-fork of this project.

If the main project ever adds the ability to 'plug-in' alternative arp-scan implementations, my fork can go away. Until then - I think my child-container approach let's me stay faithful to this project - while still extending it for my specific use case.