Printer Status Feature

[akoebbe]

I've got a need to check the status of a printer using the ~HS command, but currently this library doesn't read/recv from the socket. I'm going to work on an implementation of this functionality. Is this something that you'd want a PR to add to the library?

[akoebbe]

I've created a PR for this feature. The client now has a getPrinterStatus method that will return a developer friendly class to see the status and settings of the printer.