Adding option to ignore lineage when indexing, #398

[Kirill888]

Reason for this pull request

During new product development it is often necessary to create temporary databases to index new product data for reviewing purposes. This can often take long time due to lineage data being added to the fresh db, even though it is not relevant in this context (the DB is transient and will be deleted anyway, and the tests do not care about lineage data).

Proposed changes

• Add --ignore-lineage and --confirm-ignore-lineage options

The first one only works during interactive runs and asks user to confirm the intent, second one can be used in scripts.

• Closes Allow indexing without provenance tracking #398
• Tests added / passed
• Fully documented, including docs/about/whats_new.rst for all changes

[coveralls]

Coverage decreased (-0.06%) to 82.701% when pulling 7c39307 on ignore-lineage into 3b23771 on develop.

[omad]

Thanks!