Merge branch 'develop' into 'release/1.7.0'

src/main/java/net/geant/nmaas/SecurityConfig.java

...a/net/geant/nmaas/portal/api/auth/OIDCAuthController.java

src/main/java/net/geant/nmaas/portal/api/auth/OidcLogin.java

...n/java/net/geant/nmaas/portal/api/auth/UserOidcToken.java

.../java/net/geant/nmaas/portal/service/OidcUserService.java

.../geant/nmaas/portal/service/impl/OidcUserServiceImpl.java

...t/geant/nmaas/portal/api/auth/OIDCAuthControllerTest.java

...nt/nmaas/portal/service/impl/OidcUserServiceImplTest.java

src/test/shell/data/i18n/de.json

src/test/shell/data/i18n/en.json

src/test/shell/data/i18n/fr.json

src/test/shell/data/i18n/pl.json