The only part of the xref-mapping pipeline that depended on the
long-deprecated module XML::Simple was TAIROntologyParser - which did
not actually *use* that module for anything. Get rid of the useless
import, thus making it unnecessary for XML::Simple to be mentioned in
the cpanfile.

Merge e! 95 version bumps into master

Schema patch to update Vertebrates division names in the meta table f…

Fixed typo for new Vertebrate division name in metaContainer test

Schema patch to update Vertebrates division names in the meta table from Ensembl to EnsemblVertebrates for consistency. See declaration for details: https://www.ebi.ac.uk/panda/jira/browse/ENSINT-104.

ENSCORESW-2850: optimised for single species run

ENSCORESW-2837: do not import dependent VGNC

ENSCORESW-2853: match Ensembl species names with underscores

Feature/xref config

ENSCORESW-2553: retrieve correct accession for peptides

ENSCORESW-2792: one UCSC parser per species