Add OTF masking of LAr Supercells

This MR adds the MaskedSC COOL Folder to the LAr Supercell reconstruction chain, with special configuration for online monitoring where the database must be queried on every event (in case it has been updated by LArSkill).

One point of discussion is whether a separate bit should be used in the provenance to flag these OTF-masked SC vs the ones that are permanently masked. I believe the MaskedSC cool folder includes these permanently masked channels though, so it may be a bit redundant (I could be wrong about the content of the MaskedSC folder though).

The move to a mixed conditions container for LArBadChannelCont was required because MaskedSC is timestamp based but the associated mapping is run-lumi based.