[BitSail][Connector] Migrate Kafka legacy connector to V1 interface

[garyli1019]

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We want to migrate the legacy kafka connector to V1 interface. Similar with #98 for redis

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[MonsterChenzhuo]

@john8628 assigned to you, thanks!

[liuxiaocs7]

@garyli1019 Is this task not assigned yet, I want to try

[garyli1019]

Hi @liuxiaocs7 , how's everything going with this issue?

[liuxiaocs7]

@garyli1019 sorry for late, I have learned about Kafka and the implementation of Flink-Kafka-connector. I will continue this issue after the completion of #336, any progress will be let you know and discussed here. :)

[garyli1019]

Hi @liuxiaocs7 , I have a task blocked by this feature and I need to get this done in the next two days. If you don't mind, may I take this over?

[liuxiaocs7]

Sorry for late, @garyli1019, you can continue to take over, recently I've been busy with my master's degree opening matters and my graduate advisor's project, I did some of the work before #393 , you see if it helps you a little, if not please ignore it. If I can do anything, please let me know and I will enhance this connector together.

[garyli1019]

@liuxiaocs7 I will only work on the sink connector, so you can resume the kafka source work when you have time. Really appreciate your contribution!

[garyli1019]

sink part: #395

[liuxiaocs7]

@liuxiaocs7 I will only work on the sink connector, so you can resume the kafka source work when you have time. Really appreciate your contribution!

OK, thanks for your help, i will finish kafka-source as soon as possible