Resolves the companion virtual display-name field on record for a given FK fieldInfo.
Checks fieldInfo.RelatedEntityNameFieldMap first, then explicit nameFieldMapOverride,
and finally checks if record.EntityInfo has a virtual field named <Base>Name or <Base>
(e.g. CurrentOrganizationID -> CurrentOrganizationName).
Resolves the companion virtual display-name field on
recordfor a given FKfieldInfo. ChecksfieldInfo.RelatedEntityNameFieldMapfirst, then explicitnameFieldMapOverride, and finally checks ifrecord.EntityInfohas a virtual field named<Base>Nameor<Base>(e.g.CurrentOrganizationID->CurrentOrganizationName).