Version 1.42.1

This introduces the following changes:

• Update to FontAwesome 6.
• Provenance completeness metrics – these work like scheme annotation metrics, but you can define specific fields in config.xml as important for completeness (set annotation_metric=”yes” in the field definition). Note the new update_provenance_metrics.pl script if you want to cache the metrics table (although it calculates on-the-fly and is pretty quick if not used). The score is simply a percentage of selected fields with a value (null values are excluded – see https://github.com/kjolley/BIGSdb/blob/develop/lib/BIGSdb/Constants.pm#LL296C1-L298C4 for definitions of these).
• Isolates can now be searched by allele extended attributes defined in the typing database (https://bigsdb.readthedocs.io/en/latest/administration.html#defining-locus-extended-attributes).