[Redefine] Region input info and style to be changed.

[powerkimhub]

CSP들의 Region 등록시 정보 입력 Interface 개선 및 정형화 필요

• Azure: location => Region으로 수정
• AWS: Zone 정보 추가 입력
• KeyValueList 형식 => Attribute로 고정
• Zone이 없는 CSP 경우 ""

[AS-IS]

• AWS: Region
• AZURE: location
• GCP: Region, Zone
• ALIBABA: Region, Zone
• CLOUDIT: Region
• OPENSTACK: Region
• DOCKER: Region
• CLOUDTWIN: Region

[TO-BE]

• AWS: Region, Zone
• AZURE: Region, Zone
• GCP: Region, Zone
• ALIBABA: Region, Zone
• CLOUDIT: Region, Zone
• OPENSTACK: Region, Zone
• DOCKER: Region, Zone
• CLOUDTWIN: Region, Zone

[powerkimhub]

[AWS] Zone 정보 추가 완료
ref) #256
ref) c000398

[powerkimhub]

• fix it with Need a new method to register a cloud connection info with driver, credential, region, It's difficult to use. #414 (comment)

[현재 형식]

• AWS: Region, Zone

• AZURE: location, ResourceGroup

• GCP: Region, Zone

• ALIBABA: Region, Zone

• TENCENT: Region, Zone

• IBM: Region, Zone

• OPENSTACK: Region

• CLOUDIT: Region

• NCP: Region, Zone

• KTCLOUD: Region, Zone

• DOCKER: Region

• MOCK: Region

• CLOUDTWIN: Region