Initial Columby Worker Log module

Signed-off-by: A. van der Pluijm <info@urbanlink.nl>
improvements for worker_log, publish, csv-validation

Signed-off-by: A. van der Pluijm <info@urbanlink.nl>
Upload: add tags and categories

Signed-off-by: A. van der Pluijm <info@urbanlink.nl>
Dataset update: License

Signed-off-by: A. van der Pluijm <info@urbanlink.nl>