Merge branch 'dhcpv6-leases' into 'master'

Add IPv6 DHCP clients table

Closes #277

See merge request !250
2 jobs for master in 20 minutes and 12 seconds (queued for 6 seconds)
Status Job ID Name Coverage
  Test
passed #558266
lint

00:20:08

passed #558265
test

00:20:12