Updated YdbTracer, added gettiong of current tx state

[alex268]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 75.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 80.33%. Comparing base (5cef58b) to head (4d375f3).

Files with missing lines	Patch %	Lines
...rc/main/java/tech/ydb/jdbc/impl/YdbTracerNone.java	33.33%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #131      +/-   ##
============================================
+ Coverage     80.23%   80.33%   +0.10%     
- Complexity     2355     2362       +7     
============================================
  Files            68       68              
  Lines          6434     6439       +5     
  Branches        821      821              
============================================
+ Hits           5162     5173      +11     
+ Misses          910      905       -5     
+ Partials        362      361       -1     

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