commands/status: show routes from all routing tables

[daniloegea]

Description

While working on netplan diff I realized netplan status doesn't query all the routing tables. This information will be necessary for netplan diff. But I wonder if we should show them all in netplan status... maybe it could be hidden behind a --verbose option and show only the main table by default.

Here is the change in the output:

●  5: enx00e04c680007 ethernet UP (NetworkManager: NM-52f9e3b9-be59-4b8b-98fe-a9c24d9931d5)
      MAC Address: 00:e0:4c:68:00:07 (Realtek Semiconductor Corp.)
        Addresses: 192.168.5.122/24 (dhcp)
                   fe80::df05:925a:4f33:7254/64 (link)
    DNS Addresses: 192.168.5.1
       DNS Search: tendawifi.com
           Routes: default via 192.168.5.1 from 192.168.5.122 metric 100 (dhcp)
                   192.168.5.0/24 from 192.168.5.122 metric 100 (link)
                   fe80::/64 metric 1024

●  5: enx00e04c680007 ethernet UP (NetworkManager: NM-52f9e3b9-be59-4b8b-98fe-a9c24d9931d5)
      MAC Address: 00:e0:4c:68:00:07 (Realtek Semiconductor Corp.)
        Addresses: 192.168.5.122/24 (dhcp)
                   fe80::df05:925a:4f33:7254/64 (link)
    DNS Addresses: 192.168.5.1
       DNS Search: tendawifi.com
           Routes: default via 192.168.5.1 from 192.168.5.122 metric 100 table main (dhcp)
                   192.168.5.0/24 from 192.168.5.122 metric 100 table main (link)
                   192.168.5.122 from 192.168.5.122 table local (host, local)
                   192.168.5.255 from 192.168.5.122 table local (link, broadcast)
                   fe80::/64 metric 1024 table main
                   fe80:: table local (anycast)
                   fe80::df05:925a:4f33:7254 table local (local)
                   ff00::/8 metric 256 table local (multicast)

Checklist

• Runs make check successfully.
• Retains 100% code coverage (make check-coverage).
• New/changed keys in YAML format are documented.
• (Optional) Adds example YAML for new feature.
• (Optional) Closes an open bug in Launchpad.

[slyon]

Thank you, I like the hiding of the extra routing table information behind a --verbose flag!

I put two small remarks inline, but nothing critical. So feel free to merge as-is if you feel like.

LGTM.