add HSCP stops, fractionally charged particles, and WpE for relvals
add generic hadronizer for blackholes
changed WprimeToENu from pythia6 to pythia8
remove unnecessay parameters and migrate other pythia8 configs
changed names to TuneCUETP8M1
Merge pull request #6145 from jalimena/ExoHLTandTrkRelVals

Add RelVals for Exo HLT and Tk