[Perf] fixed by index perf. added using ImmutableMap

[chernser]

Summary

• Fixes performance for getting values by index in JDBC v2
• Migrated TableSchema to use ImmutableMap from guava for index by name lookup.
• Reimplemented TableSchema to make it immutable.

Closes

Checklist

Delete items not relevant to your PR:

• Closes #
• 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

[sonarqubecloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
89.8% Coverage on New Code
0.0% Duplication on New Code

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