D-Net

Update Test3Service, change default role to 2

Add Tester, Check user authentication of beta.openaire.eu without passwords
Note: beta.openaire.eu ldap is closed

Update JWTGenerator, first draft with jwt's exception handling

Update Test3Service.java, implement authentication with POST

Update Test3Service temporary, GET authenticate and POST authenticates

Update JWTGenerator, add jwt expiration time 1800000

Update JWTGenerator, add jwt expiration date 30 minutes

Update JWTGenerator, add all the credentials for a user

Added first JWT Generation implementation

Using spring created beans in Test3Service.