add checks when building an openaire entity | fix bug with openaire datasets | add fields for curation in claim entity | get claim curation fields in get claims methods | in save claim fill contact person field | test methods update contact person and update token
add checks when building an openaire entity | fix bug with openaire datasets | add fields for curation in claim entity | get claim curation fields in get claims methods | in save claim fill contact person field | test methods update contact person and update token