feat: supports numpy types in serialization to Line protocol

[bednar]

Closes #305

Proposed Changes

Add supports for serialize numpy types.

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)

[codecov-commenter]

Codecov Report

Merging #306 (3ce7e8a) into master (ad58f9e) will decrease coverage by 0.09%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##           master     #306      +/-   ##
==========================================
- Coverage   92.65%   92.55%   -0.10%     
==========================================
  Files          27       27              
  Lines        2191     2204      +13     
==========================================
+ Hits         2030     2040      +10     
- Misses        161      164       +3     

Impacted Files	Coverage Δ
influxdb_client/client/write/point.py	97.03% <80.00%> (-2.15%)	⬇️

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