feat: add FluxRecord.row with response data stored in List

[michaelahojna]

Closes #

Proposed Changes

Adding possibility of accessing response data in List FluxRecord.row.

In case of using pivot on data, where field contains labels that occur by default in the annotated CSV (f.e. "result" or "table"), could be duplicated column names in response. In that case FluxRecord.values (Map), which can hold only unique keys, doesn't show complete data. This edge case is solved by using FluxRecord.row (List).

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• pub run test completes successfully
• Commit messages are in semantic format
• Sign CLA (if not already signed)

[bednar]

Thanks for your PR 👍
There are a few requirements that must be be satisfy before we accept the PR:

[codecov-commenter]

Codecov Report

Base: 20.99% // Head: 21.05% // Increases project coverage by +0.06% 🎉

Coverage data is based on head (4626193) compared to base (533f5ac).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #78      +/-   ##
==========================================
+ Coverage   20.99%   21.05%   +0.06%     
==========================================
  Files         117      117              
  Lines        7551     7557       +6     
==========================================
+ Hits         1585     1591       +6     
  Misses       5966     5966              

Impacted Files	Coverage Δ
lib/client/flux_table.dart	77.14% <100.00%> (+0.33%)	⬆️
lib/client/flux_transformer.dart	78.51% <100.00%> (+0.92%)	⬆️

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[bednar]

LGTM 👍