This adds
```
$ mmcli -m 0 --cell-broadcast-list-cbm
/org/freedesktop/ModemManager1/CBM/0 (received)
/org/freedesktop/ModemManager1/CBM/0 (received)
$ mmcli -m 0 --cell-broadcast-delete-cbm=0
successfully deleted CBM from modem
$ mmcli -m 0 --cbm 0
--------------------------
General | path: /org/freedesktop/ModemManager1/CBM/1
--------------------------
Content | text: This is a test of the Ontario Alert Ready System. There is no danger to your health or safety
--------------------------
Properties | update: 0
| message code: 0
```
Signed-off-by: Guido Günther <agx@sigxcpu.org>
Different options are set as `feature`, also every possible plugin,
but this may cause confusion.
All options set as `feature` but plugins have been made `boolean` to
avoid further confusions.
`help2man` is also installed in the CI image because is required to
build different libraries.
meson is a build system focused on speed an ease of use, which
helps speeding up the software development. This patch adds meson
support along autotools.
Guido Günther
Iñigo Martínez
Aleksander Morgado