Create basic working Thesaurus Migrate Class
Register the Thesaurus Migration and add test file
Add implementation for hierarchy system
Implement multilingual migration
Add and Map real json file to migrate and fix a bug regarding items with no parents
Write test for Thesaurus Taxonomy and map the machine name in .module
Add the Thesaurus taxonomy to the osha_taxonomies module/feature
Add tests for Thesaurus migration
Add import Thesaurus taxonomy migration to the install script