TAE for HLT2 and monitoring improvements
TAE:
- Take RawData for central TAE crossing if not in Banks directory
- TAE events take trigger mask from central HltRoutingBits
Monitoring:
- Remove hacky dependency on Gaudi ROOT Sink
- Support Gaudi histograms created after start
- Avoid JSON conversion during start (moving it to the first serialization).
- The first serialization costs 2x JSON conversions.
- Prepare for Gaudi!1574
- Do not call MonitoringSvc::update on stop (done in !1006 (merged))
- Fix counter/histos with duplicated names
- Leading slash in histogram name means absolute path
- Remove unused member