PoolCounter in Debian proper

Originally posted on mastodon.technology.

I posted most of my poolcounter #Debian packaging work: https://salsa.debian.org/mediawiki-team/poolcounter

There's one remaining issue with the makefile trying to build poolcounterd twice that should get fixed upstream: https://gerrit.wikimedia.org/r/c/mediawiki/services/poolcounter/+/463700