look up DNS names for assigned addresses
Can we do a reverse lookup on addresses we are managing, and display any configured DNS names in Stork?
It is likely that the overwhelming proportion of addresses will NOT have a DNS name, so we have to consider that in the UI. We also don't want to DDOS the DNS server looking up stuff that isn't in there too much. Dynamically assigned addresses are far less likely to have a DNS name (despite DDNS).
We might start by looking up DNS names for host reservations only and reporting them in that panel. Alternatively, we could have a button to look up the DNS name for a specific host reservation, and cache it and report it along with that HR, but only look them up when explicitly triggered to do so.