New command to build a CSV files with details about elements

Needed for ABBYY import.

Please log your time on https://redmine.teklia.com/issues/1270

We need a new sub-command arkindex elements list that will use

• ListElements
• or ListElementChildren.

The command must simply use one of these endpoints, runs through the whole pagination and output results in a CSV file with the following columns:

• id
• name
• type
• image_id (if a zone is set)
• image_url (if a zone is set)
• polygon (if a zone is set)
• worker_version_id
• created

The command CLI options are:

• --corpus (optional corpus id, triggers the usage of ListElements)
• --parent (optional UUID of an element, triggers the usage of ListElementChildren
• --type (optional)
• --recursive (optional boolean, default to false)
• --output (optional path towards the csv, defaults to elements.csv)

⚠ --corpus & --parent are mutually exclusive

The goal for BIS-OCR is to generate a list of pages in a given folder. So the command will be:

arkindex elements list --parent=036bdfc2-bd40-4268-886b-f227b4ece49f --type=page --output=bis-ocr-pages.csv

which should list the same thing as https://demo.arkindex.org/element/036bdfc2-bd40-4268-886b-f227b4ece49f?type=page&order=position&order_direction=asc