[Printers] Get marker levels

[dantetemplar]

Describe the feature

It may be useful to see how much toner (ink, or marker) is left in the printer.

Suggested solution

We can use ipptools and then parse output.

ipptool -tv ipp://<ip of printer>/ipp/print get-printer-attributes.test

pycups.getPrinterAttributes with uri argument failed for some reason, but works for "named" printers.

Additional context

No response