OSIS-782 add function try_find_person_by_id in reviewers_management
OSIS-782 add function try_find_person_by_id in reviewers_management

uclouvain/osis,uclouvain/osis_louvain,uclouvain/osis,uclouvain/osis_louvain,uclouvain/osis,uclouvain/osis_louvain,uclouvain/OSIS-Louvain,uclouvain/osis,uclouvain/OSIS-Louvain,uclouvain/OSIS-Louvain