Reintroduce a way to access other binaries' IP addresses (and maybe all their configuration) from Jinja template
Before 04d2e673 there was a IPADDRS dictionary indexed with a binary's name for this purpose but it got scrapped in the networking rewrite (but not from the docs).
Apparently usecases for this exist (testing forwarding is certainly one of them), so let's reintroduce some a more general of accessing other programs' configuration: I suggest a PROGRAMS
dictionary indexed (again) by name, which exposes all the configuration fields. One would than use PROGRAMS["recursor"]["address"]
instead of IPADDRS["recursor"]
. We might document as much and as few of them that we dare to pronounce stable enough.