Add cohort id to log, not just cohort name

[gowthamrao]

CohortGenerator FUN 2/284- Generating cohort: Cough or Sputum

I use the log to see which cohort is being generated from the CohortDefinitionSet object. The log only tells me the cohort name. While that is informative, its not sufficient. CohortNames are not unique, cohortIds are.

Can we do a simple change to write both cohortId and cohortName to the log? can be even as simple as paste0(cohortId, " - ", cohortName).