Add swagger docs

[tinashechiraya]

• A JSON view of your API specification at /swagger.json
• A YAML view of your API specification at /swagger.yaml
• A swagger-ui view of your API specification at /swagger/
• A ReDoc view of your API specification at /redoc/

[tinashechiraya]

[lgkgh]

Jenkins Build Details:

Build status: SUCCESS Build duration: 15 min