Add client_name connection setting

[zhicwu]

Add client_name connection setting for routing/load balancing.

[github-actions]

Benchmark                           (client)  (statement)   Mode  Cnt       Score       Error  Units
Basic.insertOneRandomNumber  clickhouse-jdbc       normal  thrpt   20  550387.173 ± 17375.930  ops/s
Basic.insertOneRandomNumber  clickhouse-jdbc     prepared  thrpt   20     248.404 ±    28.722  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc       normal  thrpt   20    1184.045 ±   176.945  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc     prepared  thrpt   20    1340.712 ±   181.556  ops/s

[github-actions]

Benchmark                           (client)  (statement)   Mode  Cnt       Score       Error  Units
Basic.insertOneRandomNumber  clickhouse-jdbc       normal  thrpt   20  567542.504 ± 20404.029  ops/s
Basic.insertOneRandomNumber  clickhouse-jdbc     prepared  thrpt   20     268.595 ±    34.334  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc       normal  thrpt   20    1404.892 ±   209.782  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc     prepared  thrpt   20    1241.783 ±   174.265  ops/s

[github-actions]

Benchmark                           (client)  (statement)   Mode  Cnt       Score       Error  Units
Basic.insertOneRandomNumber  clickhouse-jdbc       normal  thrpt   20  532639.288 ± 15755.140  ops/s
Basic.insertOneRandomNumber  clickhouse-jdbc     prepared  thrpt   20     258.595 ±    33.030  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc       normal  thrpt   20    1136.717 ±   181.815  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc     prepared  thrpt   20    1114.154 ±   129.540  ops/s

[github-actions]

Benchmark                           (client)  (statement)   Mode  Cnt       Score       Error  Units
Basic.insertOneRandomNumber  clickhouse-jdbc       normal  thrpt   20  546783.907 ± 16456.041  ops/s
Basic.insertOneRandomNumber  clickhouse-jdbc     prepared  thrpt   20     254.927 ±    26.059  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc       normal  thrpt   20    1382.913 ±   165.285  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc     prepared  thrpt   20    1266.800 ±   165.400  ops/s