Add enums for role (employee), category and genre.#9

eraiicphu merged 3 commits intomainithsjava25/project-backend-team-code-example:mainfrom

8-create-enum-for-employee-category-and-genreithsjava25/project-backend-team-code-example:8-create-enum-for-employee-category-and-genreCopy head branch name to clipboard