fix: parsing error response for queries

[bednar]

Closes #80

The error response for queries is encoded as a stream not as a "simple" string.

• CHANGELOG.md updated
• Rebased/mergeable
• Tests pass
• Sign CLA (if not already signed)

[codecov-io]

Codecov Report

Merging #83 into master will increase coverage by 0.40%.
The diff coverage is 84.21%.

@@            Coverage Diff             @@
##           master      #83      +/-   ##
==========================================
+ Coverage   15.96%   16.37%   +0.40%     
==========================================
  Files          47       47              
  Lines        4641     4666      +25     
  Branches      224      227       +3     
==========================================
+ Hits          741      764      +23     
- Misses       3880     3882       +2     
  Partials       20       20              

Impacted Files	Coverage Δ
Client/InfluxDBClient.cs	0.00% <0.00%> (ø)
Client/WriteApi.cs	0.00% <0.00%> (ø)
Client.Core/Exceptions/InfluxException.cs	89.18% <87.09%> (+1.43%)	⬆️
Client.Core/Internal/AbstractQueryClient.cs	76.81% <100.00%> (ø)
Client.Legacy/FluxClient.cs	98.31% <100.00%> (ø)

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