feat: added callback function for getting profilers

[michaelahojna]

Closes #389

Proposed Changes

Added callback function for getting profilers with example and test

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• pytest tests 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:

1. Please add examples/query_with_profilers.py into examples/README.md.
2. Please add note about possibility of callback function into section: Profile query in README.rst

and also:

[codecov-commenter]

Codecov Report

Merging #393 (7ba9349) into master (376f371) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #393      +/-   ##
==========================================
+ Coverage   92.94%   92.95%   +0.01%     
==========================================
  Files          28       28              
  Lines        2395     2400       +5     
==========================================
+ Hits         2226     2231       +5     
  Misses        169      169              

Impacted Files	Coverage Δ
influxdb_client/client/flux_csv_parser.py	98.00% <100.00%> (+0.02%)	⬆️
influxdb_client/client/query_api.py	98.31% <100.00%> (+0.04%)	⬆️

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