Add support for so-called "driverless" printing that autofetches CUPS drivers, without the need for us to package up a billion PPD files, like
the ones we can't distribute.
Also investigate if this bails us out of the sorry mess of Brother drivers
Edit: Also add https://github.com/google/cloud-print-connector because popey said so. (USB printer attached to Solus box and print from a phone. yay)