Rename config to defaults

[j23414]

Context

At some point, get through the backlog of changes to align with the latest pathogen-repo-guide.

Ingest:

• Change authors->full_authors, abbr_authors -> authors
• Change genbank_accession->accession, genbank_accession_rev->accession_version
• Subsequently add code to add a generated url column
• Perhaps, change release_date->date_released, update_date->date_updated
• Add is_lab_host column

Phylogenetic:

• Rename any */config to */defaults
• Automagically filter out any is_lab_host entries from the downstream analysis
• Update the exclude.txt if any outliers show up

Nice to have

• Perhaps check if we can drop "set_final_strain_name.py" script by setting auspice display_defaults to 'strain' instead of 'node.name'
• Perhaps add nextclade extensions to the auspice files
• Perhaps add numeric clade names
• Perhaps allow for both clade names