Update FTAG PhysVal script for ROC

Follow up to !61955 (merged), required to fix CampaignsARTTests:

• reintroduce configurable arguments for Draw_PhysVal_btagROC
• add jetType as configurable arguments + keep support for EMTopo for Upgrade
• simplify histogram names declaration
• fix output directory creation
• update to actually write the histograms to the output file
• solve Root compilation warnings
• fix indentation
• minor updates to CampaignsARTTests configs

Labelled as urgent to restore failing CampaignsARTTests asap.

FYI @ligang @bdong @ywng @jcrosby @dshope @jmasik