Add Topic session error counters

[KirillKurdyukov]

Add Reader and Writer session error counters.

[codecov]

Codecov Report

❌ Patch coverage is 93.33333% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.54%. Comparing base (d854009) to head (73a3c3e).

Files with missing lines	Patch %	Lines
...n/java/tech/ydb/topic/read/impl/ReaderMetrics.java	90.00%	0 Missing and 1 partial ⚠️
.../java/tech/ydb/topic/write/impl/WriterMetrics.java	90.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #747      +/-   ##
============================================
+ Coverage     75.47%   75.54%   +0.06%     
- Complexity     3755     3768      +13     
============================================
  Files           396      396              
  Lines         16842    16869      +27     
  Branches       1780     1787       +7     
============================================
+ Hits          12711    12743      +32     
+ Misses         3515     3512       -3     
+ Partials        616      614       -2     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.