if enrichment analysis, also prepare lib by creating a list of metabolite sets
SetCurrentMsetLib(mSetObj=NA, lib.type, excludeNum)
Input the name of the created mSetObj (see InitDataObjects)
Input user selected name of library, "self", "pathway", "blood", "urine", "csf", "snp", "predicted", "location", "drug"
Users input the mimimum number compounds within selected metabolite sets (metabolitesets < excludeNum)