feat: support streaming iceberg source

[xxchan]

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What's changed and what's your intention?

Some troubles

• hidden cols/additional cols handling in planner
  • hidden normal cols: _iceberg_xxx
  • _row_id
  • _rw_timestamp https://github.com/risingwavelabs/risingwave/pull/19690/files#r1877438962
  • INCLUDE columns: _rw_partition, _rw_offset
• iceberg-rs doesn’t support reading part of a file now

Checklist

• I have written necessary rustdoc comments.
• I have added necessary unit tests and integration tests.
• I have added test labels as necessary.
• I have added fuzzing tests or opened an issue to track them.
• My PR contains breaking changes.
• My PR changes performance-critical code, so I will run (micro) benchmarks and present the results.
• My PR contains critical fixes that are necessary to be merged into the latest release.

Documentation

• My PR needs documentation updates.

Release note