fix issues 498: Added streaming with time units to the influx db interface

[weiss19ja]

Fix for issues #498 to propagate exception if you are using the query stream.

Adds also functionality to specify the time unit to the query stream. This feature was also disred by #418.
It is needed if you want to stream a great among of data and don't want to parse the dates from the ISO format to an epoch timestamp.

[codecov-io]

Codecov Report

Merging #508 into master will decrease coverage by 10.55%.
The diff coverage is 75%.

@@              Coverage Diff              @@
##             master     #508       +/-   ##
=============================================
- Coverage     87.53%   76.97%   -10.56%     
+ Complexity      365      320       -45     
=============================================
  Files            25       25               
  Lines          1500     1516       +16     
  Branches        167      169        +2     
=============================================
- Hits           1313     1167      -146     
- Misses          120      285      +165     
+ Partials         67       64        -3

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/org/influxdb/InfluxDB.java	100% <ø> (ø)	0 <0> (ø)	⬇️
src/main/java/org/influxdb/impl/InfluxDBImpl.java	85.48% <75%> (-4.32%)	78 <6> (ø)
...ava/org/influxdb/msgpack/QueryResultModelPath.java	0% <0%> (-90%)	0% <0%> (-7%)
...ava/org/influxdb/msgpack/MessagePackTraverser.java	0% <0%> (-87.06%)	0% <0%> (-37%)
...uxdb/msgpack/MessagePackResponseBodyConverter.java	25% <0%> (-75%)	1% <0%> (-1%)
src/main/java/org/influxdb/InfluxDBException.java	87.27% <0%> (-3.64%)	11% <0%> (-1%)
src/main/java/org/influxdb/dto/Query.java	63.15% <0%> (-2.64%)	12% <0%> (ø)
src/main/java/org/influxdb/impl/TimeUtil.java	72% <0%> (+4%)	7% <0%> (+1%)	⬆️

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