[Feature] Add support iceberg table

**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**

There will be good to have iceberg table support (https://github.com/apache/iceberg) as external table to support select from it.

**Describe the solution you'd like**
See above.

**Describe alternatives you've considered**
also could be good to add hive metastore.

**Additional context**
https://github.com/apache/iceberg-rust - Native Rust implementation.

The issue names no source files, tests, or entry points. Review the Apache Iceberg and iceberg-rust references first, then define the external-table support scope, including whether Hive Metastore is included and what successful SELECT support should cover.

Written by the indexing model from the issue text.