feat: Add max_retries, max_retry_delay and exponential_base to WriteApi

[rolincova]

Closes

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

[codecov-commenter]

Codecov Report

Merging #47 into master will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #47      +/-   ##
==========================================
+ Coverage   99.31%   99.34%   +0.02%     
==========================================
  Files          12       12              
  Lines         588      610      +22     
==========================================
+ Hits          584      606      +22     
  Misses          4        4              

Impacted Files	Coverage Δ
lib/influxdb2/client/default_api.rb	100.00% <100.00%> (ø)
lib/influxdb2/client/influx_error.rb	100.00% <100.00%> (ø)
lib/influxdb2/client/worker.rb	93.44% <100.00%> (+0.71%)	⬆️
lib/influxdb2/client/write_api.rb	100.00% <100.00%> (ø)

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[bednar]

The retry strategy should also work for connection errors (i.e: restarting server, reloading SSL certificate).

The active_merchant has similar strategy:

https://github.com/activemerchant/active_merchant/blob/0b28ca3f575fc77420605197bf7d078f460f26d8/lib/active_merchant/network_connection_retries.rb#L6