WIP: [BitSail][Connector] Migrate Kafka legacy source connector to V1 inte…

[liuxiaocs7]

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Pre-Checklist

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• [x] I have read through the CONTRIBUTING.md documentation.
• [x] My code has the necessary comments and documentation (if needed).
• [x] I have added relevant tests.

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Approaches

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Related Issues

e.g. Close #796

New Behavior (screenshots if needed)

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