Add printer support

[ShalokShalom]

Is your feature request related to a problem? Please describe.

Currently, I have to configure and maintain every printer setup on its own.

Describe the solution you'd like

Being able to use the printer setup workflow from NixOS in KaOS (and other distributions.)

Describe alternatives you've considered

Using the drivers and configuration of the host distribution.
This would not come with the typical advantages of NixOS.

Additional context

I think cooperation's often have tons of printer, often different models,
and on different kinds of operating systems. This could help, to unify the configuration of them.

[r-vdp]

I'd be willing to review a PR for this, but I don't own a printer and I know very little about printer drivers, so I don't think I'd be able to implement this myself.