[Feature][Sort] Support dynamic topic for KafkaLoadNode

[yunqingmoswu]

Description

Support dynamic topic for KafkaLoadNode when the format of kafka is raw and the 'key.fields' is not specifyed.
This is mainly for some whole database migration scenarios, we assume that the upstream input data is a mixed schema of whole database migration, we ignore the real schema for now, receive the entire record in a binary raw data format, and fetch and parse its schema and data on the kafka sink side, and according to Some data values ​​are dynamically written to related topics.
Dynamic topic writing has some limitations:
1.The upstream data is raw format with a fixed inner format, only support [canal-json|debezium-json] at now
2.The 'key.fields' is not specifyed
3.It needs to specify 'topic-pattern' and 'inner.format' for dynamically extracting topic from data

Use case

No response

Are you willing to submit PR?

• Yes, I am willing to submit a PR!

Code of Conduct

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