Reorganize `ingest_metadata` field

[shirey]

This work needs to be done In conjunction with the work in Entity API #748

The Dataset.ingest_metadata field will be reorganized to accommodate:

• Easier access to metadata for searching
• Adding fields to accommodate the Workflow Tracking effort
• Adding the Dataset.calculated_metadata field to allow storage of calculated/derived metadata

This work is specified in the ingest_metadata field reorganization document

From the above document a summary of the changes that need to be made are:

• MOVE:
  • Dataset.metadata.metadata → Dataset.metadata
  • Dataset.metadata.files → Dataset.files
• RENAME (Elasticsearch/Search API only):
  • Dataset.metadata → Dataset.ingest_metadata (Elasticsearch/Search API only)
• DELETE:
  • Dataset.metadata.thumbnail_file_abs_path
  • Dataset.metadata.extra_metadata
• ADD:
  • Dataset.ingest_metadata.workflow_description (as String/Text)
  • Dataset.ingest_metadata.workflow_version (as String/Text)
  • Dataset.calculated_metadata (as JSON text)

[yuanzhou]

@kburke The Harvard team noted that they'll also need to update some of the mapped fields during portal index translation. So once you have the changes ready, I'll ask them to take care the portal pieces under https://github.com/hubmapconsortium/search-api/tree/main/src/hubmap_translation/addl_index_transformations/portal