This function takes two lists of simulated outcome (eg from SimulateAllPatientOutcomes) and appends such that the structure of the returned list is the same as the source lists. For elements that are a matrix it will utilize rbind, for vectors c() is used. The main purpose of this function is during simulaitons if the original SimulateAllPatients did not generate enought patients
AppendPatientLists(lList1, lList2, vNamesToExclude = NULL)