feat(QueryService): Support QueryStats in QueryService-based TableClient wrapper

[nvamelichev]

Fixes: #534

[codecov-commenter]

Codecov Report

❌ Patch coverage is 35.48387% with 60 lines in your changes missing coverage. Please review.
✅ Project coverage is 62.06%. Comparing base (2984ceb) to head (0c8c6a6).
⚠️ Report is 258 commits behind head on master.

Files with missing lines	Patch %	Lines
...in/java/tech/ydb/table/query/stats/QueryStats.java	0.00%	17 Missing ⚠️
...a/tech/ydb/table/query/stats/TableAccessStats.java	0.00%	15 Missing ⚠️
...va/tech/ydb/table/query/stats/QueryPhaseStats.java	0.00%	13 Missing ⚠️
...a/tech/ydb/table/query/stats/CompilationStats.java	0.00%	9 Missing ⚠️
...ava/tech/ydb/table/query/stats/OperationStats.java	0.00%	5 Missing ⚠️
...main/java/tech/ydb/query/impl/TableClientImpl.java	96.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             master     #539       +/-   ##
=============================================
+ Coverage     47.22%   62.06%   +14.84%     
- Complexity     1750     2365      +615     
=============================================
  Files           311      331       +20     
  Lines         12502    13750     +1248     
  Branches       1237     1379      +142     
=============================================
+ Hits           5904     8534     +2630     
+ Misses         6139     4568     -1571     
- Partials        459      648      +189     

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