Added support of topic messages batching

[alex268]

No description provided.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 68.57143% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 61.26%. Comparing base (9268e24) to head (26edb97).

Files with missing lines	Patch %	Lines
...tech/ydb/topic/read/impl/PartitionSessionImpl.java	66.66%	7 Missing and 2 partials ⚠️
...n/java/tech/ydb/topic/settings/ReaderSettings.java	60.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #530      +/-   ##
============================================
- Coverage     61.27%   61.26%   -0.01%     
- Complexity     2310     2313       +3     
============================================
  Files           328      328              
  Lines         13489    13515      +26     
  Branches       1349     1352       +3     
============================================
+ Hits           8265     8280      +15     
- Misses         4588     4598      +10     
- Partials        636      637       +1     

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