mappings/Veg+-VegCore.csv: Changed output root to Veg+, to allow mappings/Veg+-VegCore.csv to be joined with itself idempotently, for supporting multi-level chains of mappings
mappings/Veg+-VegCore.csv: Changed output root to Veg+, to allow mappings/Veg+-VegCore.csv to be joined with itself idempotently, for supporting multi-level chains of mappings