IN PROGRESS - issue HATCHET-41: 환경 초기화 설정과 DB 설정 연동 
https://itwise.atlassian.net/browse/HATCHET-41
IN PROGRESS - issue HATCHET-39: system 읽기 sample API 개발
https://itwise.atlassian.net/browse/HATCHET-39

Add ProjectGroup model, mapper, db properties file