feat: allows users to skip of verifying SSL certificate

[bednar]

Closes #134

Proposed Changes

Add kwargs argument verify_ssl to InfluxDBClient that allows users to skip of verifying SSL certificate.

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 #136 into master will decrease coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #136      +/-   ##
==========================================
- Coverage   88.99%   88.94%   -0.05%     
==========================================
  Files          23       23              
  Lines        1863     1864       +1     
==========================================
  Hits         1658     1658              
- Misses        205      206       +1     

Impacted Files	Coverage Δ
influxdb_client/client/write_api.py	97.58% <ø> (ø)
influxdb_client/client/influxdb_client.py	98.29% <100.00%> (+0.01%)	⬆️
influxdb_client/client/date_utils.py	80.00% <0.00%> (-20.00%)	⬇️
influxdb_client/rest.py	80.15% <0.00%> (+0.76%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 11f0c35...7595a32. Read the comment docs.