BatchOptions to have .precision()

[asashour]

Fixes #532

[codecov-io]

Codecov Report

Merging #572 into master will increase coverage by 1.34%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master     #572      +/-   ##
============================================
+ Coverage     88.16%   89.51%   +1.34%     
- Complexity      703      710       +7     
============================================
  Files            68       68              
  Lines          2392     2404      +12     
  Branches        247      247              
============================================
+ Hits           2109     2152      +43     
+ Misses          198      166      -32     
- Partials         85       86       +1

Impacted Files	Coverage Δ	Complexity Δ
...rc/main/java/org/influxdb/impl/BatchProcessor.java	98.52% <100%> (+0.05%)	19 <1> (+1)	⬆️
src/main/java/org/influxdb/BatchOptions.java	95.83% <100%> (+2.97%)	20 <3> (+3)	⬆️
src/main/java/org/influxdb/impl/InfluxDBImpl.java	90.97% <100%> (+0.51%)	88 <0> (+1)	⬆️
src/main/java/org/influxdb/dto/Point.java	92.5% <0%> (+8.12%)	36% <0%> (+1%)	⬆️
src/main/java/org/influxdb/dto/BatchPoints.java	88.54% <0%> (+15.62%)	24% <0%> (+1%)	⬆️

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