Add addressFilter to hosttree
One thing we might want to consider as a followup MR is updating the host announcement code to return an error if the domain you are announcing resolves to more than 2 IPs or to 2 IPs of the same type. (e.g. 2 IPv4 addresses) Otherwise you might never get chosen as a host and you don't know why.
Edit: I implemented the proposed change above in !3206 (merged)
Resolves #3194 (closed)
Edited by Christopher Schinnerl