fix(csharp): fix .net node redirection in tcp client

[lukaszzborek]

• fix node redirection after login
• add node redirection tests
• add redirection in token login

[codecov]

Codecov Report

❌ Patch coverage is 85.36585% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 67.54%. Comparing base (2eefbc3) to head (c467717).

Files with missing lines	Patch %	Lines
...DK/IggyClient/Implementations/HttpMessageStream.cs	40.00%	3 Missing ⚠️
...SDK/IggyClient/Implementations/TcpMessageStream.cs	91.66%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2843      +/-   ##
============================================
+ Coverage     67.53%   67.54%   +0.01%     
  Complexity      739      739              
============================================
  Files          1048     1048              
  Lines         84103    84128      +25     
  Branches      60704    60715      +11     
============================================
+ Hits          56795    56822      +27     
+ Misses        24950    24943       -7     
- Partials       2358     2363       +5     

Flag	Coverage Δ
csharp	67.43% <85.36%> (+0.18%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...DK/IggyClient/Implementations/HttpMessageStream.cs	71.72% <40.00%> (-0.40%)	⬇️
...SDK/IggyClient/Implementations/TcpMessageStream.cs	76.33% <91.66%> (+2.81%)	⬆️

... and 5 files with indirect coverage changes

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