Merge branch '37-addition-of-orcid-id-field-to-research-group-leaders' into '38-addition-of-ror-id-field-to-research-group-leaders-table'

# Conflicts:
#   classes/WorkingGroup.php
#   classes/WorkingGroupRepository.php
#   includes/sfb_commons_config_groups.inc
#   includes/sfb_commons_config_groups_add.inc
#   includes/sfb_commons_config_groups_edit.inc
#   sfb_commons.install
#   sfb_commons.module