given an odour response matrix with columns for different odours and rows for different sweep timepoints, reorder columns in desired order adding NAs for missing odours
addnacols(mat, odours)
| mat | odour response matrix where odours are coloumns and cells are rows |
|---|---|
| odours | character vector of odour names |
gives back a tidyied up matrix with coloumns aorderd by
odours adding NAs for missing odour response data