Extrainfo will disappear

In Rec!2773 (merged) extrainfo is replaced by relation tables. The way we pass those to the functors declared to FunTuple needs some thinking.

I suggest we have a dedicated meeting with @graven @tnanut @amathad @dfazzini .

Relates to DPA master task https://gitlab.cern.ch/lhcb-dpa/project/-/issues/198.