[DOCS]: Add documentation for BulkInsert, GetBulkInsertState and ListBulkInsertState

[SleepyBearDad]

Is there an existing issue for this?

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Documentation Link

No response

Describe the problem

There is no documentation for the useful BulkInsert API. Since it's semantics differ from the python/Java documented here: https://milvus.io/docs/bulk_insert.md

Describe the improvement

Create a milvus-sdk-go documentation for the BulkInsert API describing the semantics in the method documentation: "// BulkInsert import data files(json, numpy, etc.) on MinIO/S3 storage, read and parse them into sealed segments" (client.go)

Additionally, document the GetBulkInsertState and ListBulkInsertState

Anything else?

No response

[anonymous530]

+1