Utility to validate that the lineage table carries the same information
as the existing member_comid strings.
Examples
lin <- data.table::data.table(
refactored_id = c("101", "102", "103"),
aggregated_id = c("fp-1", "fp-1", "fp-2"))
lineage_member_csv(lin, group_by = "aggregated_id")
#> aggregated_id member_comid
#> <char> <char>
#> 1: fp-1 101,102
#> 2: fp-2 103