cli: add verbose output to wifi list mode

When using WiFi in an environment with multiple APs of the same SSID (eg.
conference venue, hotels), it is often useful to be able to identify particular
APs by their BSSID.

This information is provided in `nmcli d wifi list` and can only be made visible
by passing format fields or just using -f all. Neither method is easily
discoverable, and the 'all' format is largely overwhelming.

The patch add a nmcli d wifi list --verbose flag, which follows the typical
usage patterns.

Signed-off-by: Maciek Borzecki <maciek.borzecki@gmail.com>
15 jobs for bboozzoo/nmcli-wifi-list-verbose in 38 minutes and 32 seconds (queued for 3 seconds)
latest
Status Job ID Name Coverage
  Test
passed #493598
allowed to fail
checkpatch

00:03:14

manual #493603
allowed to fail manual
t_centos:7.5.1804
passed #493604
t_centos:7.6.1810

00:29:39

passed #493610
t_debian:10

00:23:19

passed #493609
t_debian:9

00:31:29

passed #493612
t_debian:sid

00:24:06

manual #493611
allowed to fail manual
t_debian:testing
passed #493599
t_fedora:28

00:37:34

passed #493600
t_fedora:29

00:38:32

passed #493601
t_fedora:30

00:33:11

manual #493602
allowed to fail manual
t_fedora:rawhide
passed #493605
t_ubuntu:16.04

00:21:11

passed #493606
t_ubuntu:18.04

00:32:02

manual #493608
allowed to fail manual
t_ubuntu:devel
manual #493607
allowed to fail manual
t_ubuntu:rolling