Splits well identifiers of the form "A01" into the letter row
and numeric column.
Examples
cr_well_to_rowcol(c("A01", "B05", "H12"))
#> # A tibble: 3 × 3
#> well row col
#> <chr> <int> <int>
#> 1 A01 1 1
#> 2 B05 2 5
#> 3 H12 8 12