requested to merge jodafons/athena:connect_egamma_emulator_and_monitoring into master
This MR just connect the e/g emulator into the e/g offline monitoring. The e/g emulator today is turn-off (emulator=False into the egamma python offline mon code).
- tidy up matching tool and include necessary features to emulate;
- change keys (harmonisation);
- include steps into the emulator;