Vocabs CC-1560: Apply PSR-2 to models/vocabularies.php
Vocabs CC-1560: Apply PSR-2 to models/vocabularies.php

Clean up violations of PSR-2 within models/vocabularies.php.
Still need to use a namespace.

au-research/ANDS-Registry-Core,au-research/ANDS-Registry-Core,au-research/ANDS-Registry-Core,au-research/ANDS-Registry-Core,au-research/ANDS-Registry-Core