Funtuple does not print information about configured decay descriptors for each branch

While plenty of information printed about the output TTree in DaVinci jobs (i.e. TTree->Print()), no information is exposed about the configuration e.g. branch -> decay descriptors mapping

DecayTreeTuple did this with "Will look for: ..." messages in the log. I think this is useful information to have in the log and also for scraping sample metadata from production logs.

If not in the log, then maybe the DaVinci summary XML? (no idea how that works, though - and the summary XML seems to be missing many things).