Force Stats classes
Forces consumer code to have a Stats type in order to trigger consideration of exception logging, and the gathering of Outcomes in general.
See jet/dotnet-templates#66 for upgrade guidance.
Necessitates changing client code for stats; arguably that should trigger a Major version bump but the actual change is not of that order
See ChangeLog
Targets Equinox 2.0.0, FsCodec 2.0.0, FsKafka 1.4.1
Shoutout to @fnipo for the feedback leading to this