libinput: Provide a CLI tool to configure input devices

It seems to be very popular among designers (see xsetwacom)
2 jobs for !1604 with work/dbustablet in 15 minutes and 33 seconds (queued for 5 seconds)
detached
Status Name Job ID Coverage
  Build
passed freebsd_qt515 #168637
FreeBSD

00:08:20

passed suse_tumbleweed_qt515 #168636
Linux

00:15:28