imlement issue #439 : Retry capability for writing of BatchPoints

[lxhoan]

I believe in the value of support BatchPoints writing with retry
This PR is to expose one method for this purpose

[lxhoan]

this PR as an alternative to PR #495
This looks simpler because the purpose is exposed directly in InfluxDB interface

Please take a look, tks

[codecov-io]

Codecov Report

Merging #503 into master will decrease coverage by 0.22%.
The diff coverage is 85.71%.

@@             Coverage Diff             @@
##             master    #503      +/-   ##
===========================================
- Coverage     87.53%   87.3%   -0.23%     
- Complexity      365     368       +3     
===========================================
  Files            25      25              
  Lines          1500    1513      +13     
  Branches        167     167              
===========================================
+ Hits           1313    1321       +8     
- Misses          120     124       +4     
- Partials         67      68       +1

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/org/influxdb/InfluxDB.java	100% <ø> (ø)	0 <0> (ø)	⬇️
...rc/main/java/org/influxdb/impl/BatchProcessor.java	98.47% <100%> (+0.01%)	18 <1> (+1)	⬆️
src/main/java/org/influxdb/InfluxDBException.java	88.52% <100%> (-2.39%)	12 <1> (ø)
src/main/java/org/influxdb/impl/InfluxDBImpl.java	89.43% <71.42%> (-0.38%)	80 <2> (+2)
src/main/java/org/influxdb/dto/Query.java	63.15% <0%> (-2.64%)	12% <0%> (ø)

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[lxhoan]

Hi @majst01 , @fmachado
What do you think ?

thank you