Adding missing Jet/Etmiss content to DAOD_PHYS
This MR adds the following to DAOD_PHYS
- GhostBHadronsFinalCount to the large-R truth trimmed jets (needed for W/top tagging)
- Variables needed for BDT q/g tagger
- New smart slimming list for MET which does not include MET_References variables
Linking the JIRA ticket for completeness where some of the changes have been discussed ATLJETMET-1189
Marking as urgent for the imminent starting of DAOD_PHYS production.