Dear Maintainer,

colord-sane scans for SANE devices every time colord scans for
devices, e.g. on my system whenever a USB device is connected (or
wakes up). This wakes my multi-function printer up, which is noisy and
wasteful (it's a laser printer, so it heats up every time this
happens). See https://github.com/hughsie/colord/issues/118 and the
links there for more on this.

Would it be possible to split colord-sane out to a separate package?
The attached patch implements this. This has the side-benefit that the
main colord package no longer depends on libsane1.

Regards,

Stephen