New java client api

[mzitnik]

Summary

First, commit for new Client API

Checklist

Delete items not relevant to your PR:

• 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

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[sonarcloud]

Quality Gate failed

Failed conditions
1 Security Hotspot
0.0% Coverage on New Code (required ≥ 80%)
E Reliability Rating on New Code (required ≥ A)

See analysis details on SonarCloud

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[chernser]

client-v2 - good!
packages - I think, it is fine for not. I do mainly care about artifact name.