refactor(csharp): cleanup tcp connection after vsr implementation

[lukaszzborek]

Follow-up cleanup of the .NET SDK TCP transport after the VSR support landed

[codecov]

Codecov Report

❌ Patch coverage is 69.05371% with 121 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.94%. Comparing base (a3e256b) to head (cbf8bfc).

Files with missing lines	Patch %	Lines
...SDK/IggyClient/Implementations/TcpMessageStream.cs	53.33%	48 Missing and 8 partials ⚠️
foreign/csharp/Iggy_SDK/Vsr/VsrConnection.cs	74.56%	36 Missing and 8 partials ⚠️
...IggyClient/Implementations/TcpMessageStream.Vsr.cs	58.82%	10 Missing and 4 partials ⚠️
foreign/csharp/Iggy_SDK/Vsr/VsrNamespace.cs	85.71%	2 Missing and 1 partial ⚠️
foreign/csharp/Iggy_SDK/Consumers/IggyConsumer.cs	95.23%	0 Missing and 1 partial ⚠️
foreign/csharp/Iggy_SDK/Mappers/BinaryMapper.cs	0.00%	1 Missing ⚠️
foreign/csharp/Iggy_SDK/Vsr/ConsensusSession.cs	83.33%	1 Missing ⚠️
foreign/csharp/Iggy_SDK/Vsr/VsrHeader.cs	66.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3858      +/-   ##
============================================
- Coverage     76.95%   75.94%   -1.02%     
  Complexity     1021     1021              
============================================
  Files          1366     1367       +1     
  Lines        176130   176082      -48     
  Branches     146173   146287     +114     
============================================
- Hits         135547   133721    -1826     
- Misses        36707    38479    +1772     
- Partials       3876     3882       +6     

Components	Coverage Δ
Rust Core	76.07% <ø> (ø)
Java SDK	63.22% <ø> (ø)
C# SDK	53.44% <69.05%> (-22.57%)	⬇️
Python SDK	89.98% <ø> (ø)
PHP SDK	84.26% <ø> (ø)
Node SDK	96.33% <ø> (ø)
Go SDK	69.13% <ø> (ø)

Files with missing lines	Coverage Δ
foreign/csharp/Iggy_SDK/Utils/ArrayPoolHelper.cs	100.00% <100.00%> (ø)
...n/csharp/Iggy_SDK/Utils/TcpMessageStreamHelpers.cs	91.42% <ø> (+6.64%)	⬆️
foreign/csharp/Iggy_SDK/Consumers/IggyConsumer.cs	43.73% <95.23%> (-27.19%)	⬇️
foreign/csharp/Iggy_SDK/Mappers/BinaryMapper.cs	73.31% <0.00%> (-20.18%)	⬇️
foreign/csharp/Iggy_SDK/Vsr/ConsensusSession.cs	95.00% <83.33%> (-5.00%)	⬇️
foreign/csharp/Iggy_SDK/Vsr/VsrHeader.cs	94.91% <66.66%> (-1.70%)	⬇️
foreign/csharp/Iggy_SDK/Vsr/VsrNamespace.cs	96.94% <85.71%> (-3.06%)	⬇️
...IggyClient/Implementations/TcpMessageStream.Vsr.cs	60.63% <58.82%> (-14.57%)	⬇️
foreign/csharp/Iggy_SDK/Vsr/VsrConnection.cs	74.56% <74.56%> (ø)
...SDK/IggyClient/Implementations/TcpMessageStream.cs	48.50% <53.33%> (-31.90%)	⬇️

... and 63 files with indirect coverage changes

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[lukaszzborek]

If possible, merge #3836 first. Then I will remove things with namespace which I refactoring 😅