Iceberg: Add identifier-field-ids support in Hive

Some writer engines require primary keys on a table so that they can use them for writing equality deletes (only the PK cols are written to the eq-delete files).

Hive currently doesn't reject setting PKs for Iceberg tables, however, it just ignores them. This succeeds:

create table ice_pk (i int, j int, primary key(i) disable novalidate) stored by iceberg;