- rename: show log dhcp will become show log dhcp server
- add: show log dhcp client to display logs from ALL DHCP client processes
- add: show log dhcp client interface <name> to display logs from individual DHCP client processes
- add: show log dhcpv6 server to display infos about running DHCPv6 server
- add: show log dhcpv6 client to display logs from ALL DHCPv6 client processes
- add: show log dhcpv6 client interface <name> to display logs from individual DHCPv6 client processes