Support job.attribute_filters with a default

[tcompa]

          As of this morning call:

Let's make sure we only use job.attribute_filters within the runner, and let's make sure that the two clients make it easy to use dataset.attribute_filters as a default value for job.attribute_filters upon submission.

Originally posted by @tcompa in fractal-analytics-platform/fractal-server#2155 (comment)

[tcompa]

The idea here is that the submission command should be like

• default: no job.attribute_filters is set
• something like --attribute-filters-json-file /some/file.json should populate attribute_filters in the POST request
• something like --use-dataset-attribute-filters should make a preliminary GET request to read the dataset attribute filters, and then populate attribute_filters in the POST request