[client-v2] reader buffer optimization

[chernser]

Summary

A lot small buffers may be allocated while reading numeric information.
This PR implements a reusing buffers withing a reader. It is not a default behavior.
Introduced Client.Builder#allowBinaryReaderToReuseBuffers to control the behavior

Note:

• implementation is not thread-safe
• reader should be called by one thread at a time
• small buffers will 64 bytes are pre-allocated

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:/ClickHouse/clickhouse-docs was updated with further explanations or tutorials

[sonarcloud]

Quality Gate failed

Failed conditions
60.5% Coverage on New Code (required ≥ 80%)

See analysis details on SonarCloud

[mzitnik]

I do not see tests that enable the flag client_allow_binary_reader_to_reuse_buffers

[chernser]

I do not see tests that enable the flag client_allow_binary_reader_to_reuse_buffers

I've added client-v2/src/test/java/com/clickhouse/client/query/BinaryReadyReusesBuffersTests.java that overrides QueryTests and sets client_allow_binary_reader_to_reuse_buffers