feat: new icon - iceberg table

[gershomcharig]

Fixes #0000

Checklist

• Includes tests
• Update documentation

Changes proposed in this pull request:

Added icons for "Iceberg tables" and "adding Iceberg tables"

Reviewers should focus on:

Making sure everything renders okay and the right files were changed.

Screenshot

[palantirtech]

Thanks for your interest in palantir/blueprint, @gershomcharig! Before we can accept your pull request, you need to sign our contributor license agreement - just visit https://cla.palantir.com/ and follow the instructions. Once you sign, I'll automatically update this pull request.

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• Feature (Adding new functionality)
• Improvement (Improving existing functionality)
• Fix (Fixing an issue with existing functionality)
• Break (Creating a new major version by breaking public APIs)
• Deprecation (Removing functionality in a non-breaking way)
• Migration (Automatically moving data/functionality to a new system)

Description

feat: new icon - iceberg table

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