Decide Future Use of CaloConfig and DB writing.

[mulhearn]

Three possibilities for short-term CaloConfig:

1. Use Era-style configuration and continue to fill CaloConfig via local config file.

2. Write using ESProducer two version of CaloConfig to DB, one for HI, one for PP. Then, in both data and MC GTs, use the appropriate table.

3. Start O2O'ing the actual firmware versions used online. This requires some coordination between offline and online, as currently we simply have picked two version numbers to mark PP vs HI without checking what is actually online. Probably makes sense to record all firmware used in Calo system as well.