Add auth package
Add auth package


Former-commit-id: 3d96dd9c5fa1eb2e63b920a44faa59d21bf1cb18
Former-commit-id: 3fcb41cbcfc02fc109682de943d5a86f59eb4763
Former-commit-id: 5bd4109407c541b333735f86857b2afe5c67f81f
ONSdigital/florence,ONSdigital/florence,ONSdigital/florence,ONSdigital/florence