Output bulk data to a bulk folder rather than individual files within project directory

[allyhawkins]

Rather than output the bulk data and metadata as individual files within the project directory, we want to output these files to a bulk folder.
This means updating the publishDir statement to be "${params.results_dir}/${meta.project_id}/bulk" in the line below:

scpca-nf/modules/bulk-salmon.nf

Line 71 in a9dc826

publishDir "${params.results_dir}/${meta.project_id}", mode: 'copy'

.

[allyhawkins]

Closed by #767