Make a name vector unique by adding suffix "_n"
Examples
make_unique_names(c("A", "B", "A", "C", "A"))
#> [1] "A" "B" "A_1" "C" "A_2"
# Returns: c("A", "B", "A_1", "C", "A_2")
Make a name vector unique by adding suffix "_n"
make_unique_names(c("A", "B", "A", "C", "A"))
#> [1] "A" "B" "A_1" "C" "A_2"
# Returns: c("A", "B", "A_1", "C", "A_2")