YDB: implement connection via Query Service

[vitalyisaev2]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 49.31507% with 222 lines in your changes missing coverage. Please review.

Project coverage is 63.43%. Comparing base (4c48944) to head (1171186).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...p/server/datasource/rdbms/ydb/connection_native.go	0.00%	132 Missing ⚠️
app/server/datasource/rdbms/ydb/type_mapper.go	51.56%	31 Missing ⚠️
...server/datasource/rdbms/utils/predicate_builder.go	56.09%	18 Missing ⚠️
...er/datasource/rdbms/ydb/connection_database_sql.go	71.15%	9 Missing and 6 partials ⚠️
.../server/datasource/rdbms/ydb/connection_manager.go	53.84%	6 Missing ⚠️
...ver/datasource/rdbms/utils/query_args_collector.go	80.00%	4 Missing ⚠️
app/server/datasource/rdbms/ydb/sql_formatter.go	63.63%	4 Missing ⚠️
app/client/connector/client.go	0.00%	2 Missing ⚠️
app/server/config/config.go	77.77%	1 Missing and 1 partial ⚠️
app/server/datasource/rdbms/data_source.go	66.66%	1 Missing and 1 partial ⚠️
... and 3 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #202      +/-   ##
==========================================
- Coverage   64.80%   63.43%   -1.37%     
==========================================
  Files         104      107       +3     
  Lines        5750     5998     +248     
==========================================
+ Hits         3726     3805      +79     
- Misses       1710     1880     +170     
+ Partials      314      313       -1     

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