Support multiple external kitty terminals?

[IndianBoy42]

I am writing a PR in my fork to allow buffer local ports for the kitty terminal, and extending all the lua functions to take a port argument, thus you could have multiple kitty terminals and send commands to different ones.

Would you be interested in this functionality?

[jghauser]

Hey! Thanks for the suggestion, I think this sounds like a useful feature! I'd be happy about a PR :)