Fixes issue: InfluxDBResultMapper doesnt call POJO setter

[sjoshid]

Closes #670

Things included in this PR:

• Call field setters instead of setting field values directly.
• This PR maintains existing behaviour ie setting fields directly ignoring setters.
• Priority is given to field setter if one exists. If not, field is set directly.

[sjoshid]

@fmachado
Im not sure if I need to run format sh. But when I do, I get a lot of diffs in most Java files.
Anything I need to do with formattting?

[fmachado]

@sjoshid thanks for submitting this PR.

Im not sure if I need to run format sh.

I don't remember when was the last time that I had to run that shell script as I'm using the checkstyle.xml for a while.

But before getting into the formatting issues, could you please check why Travis build failed?

https://travis-ci.org/github/influxdata/influxdb-java/builds/685113586

[codecov-io]

Codecov Report

Merging #676 into master will decrease coverage by 0.06%.
The diff coverage is 88.17%.

@@             Coverage Diff              @@
##             master     #676      +/-   ##
============================================
- Coverage     88.18%   88.11%   -0.07%     
- Complexity      722      737      +15     
============================================
  Files            69       69              
  Lines          2513     2566      +53     
  Branches        268      285      +17     
============================================
+ Hits           2216     2261      +45     
- Misses          208      210       +2     
- Partials         89       95       +6     

Impacted Files	Coverage Δ	Complexity Δ
...n/java/org/influxdb/impl/InfluxDBResultMapper.java	87.75% <88.17%> (-1.06%)	72.00 <28.00> (+15.00)	⬇️

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[sjoshid]

@fmachado
Any feedback on this one?

[sjoshid]

@majst01
I have been waiting for @fmachado for feedback but havent received it.
Can you provide one?

[John9570]

whats the status on this? this would be a super useful feature to have