ST: making number of toys for TrigGlobalEffTools configurable
This MR makes the number of toys for the tools which calculates the global trigger efficiencies configurable in SUSYTools (where nToys=0 means for the tool to use explicit formulas). It is the R22 counterpart of !62301 (merged).
Apologies for the non-trivial diff, my editor removed a couple of white spaces at line ends, hopefully that doesn't distract too much!