[client-v2] primitive reading into pojo

[chernser]

Summary

Current implementation reads all values into objects even it can be done using primitive types. It was done to simplify code, but it may be not good for memory consumption. Current PR:

• adds methods to read values into primitives
• updates POJO deserialization code to use these new methods

Checklist

Delete items not relevant to your PR:

• [x] Unit and integration tests covering the common scenarios were added
• [ ] A human-readable description of the changes was provided to include in CHANGELOG
• [ ] For significant changes, documentation in https://github.com/ClickHouse/clickhouse-docs was updated with further explanations or tutorials

[mzitnik]

Do we support POJO with types of Long, Integer, Short, and more class

[chernser]

Do we support POJO with types of Long, Integer, Short, and more class

We do but with 1-to-1 match. But with primitives it should be easier to handle. I will update this part.

[sonarcloud[bot]]

Quality Gate failed

Failed conditions
77.3% Coverage on New Code (required ≥ 80%)

See analysis details on SonarCloud