// ExtractTaxonomy iterates over each slice of the IBioSequence and extracts the taxonomy from it using the ExtractTaxonomy method of the slice.
// If the seqAsTaxa parameter is true, then the sequence itself will be treated as a single taxon. Otherwise, each element in the slice will be treated separately.
// The function returns an error if any of the ExtractTaxonomy calls fail and nil otherwise.