feat(java): add possibility to specify WriteConsistency parameter

[bednar]

Proposed Changes

1. Added possibility to specify WriteConsistency parameter. For more info see:
   • https://docs.influxdata.com/influxdb/v1.8/tools/api/#query-string-parameters-2
   • https://docs.influxdata.com/enterprise_influxdb/v1.6/concepts/clustering/#write-consistency
2. Added possibility to specify default precision and consistency via InfluxDBClientOptions3.
3. Added an example: How to use consistency parameter for InfluxDB Enterprise

---

Configure consistency via Write API:

- writeApi.writeRecord(WritePrecision.NS, "cpu_load_short,host=server02 value=0.67");
+ WriteParameters parameters = new WriteParameters(WritePrecision.NS, WriteConsistency.ALL);
+ 
+ writeApi.writeRecord("cpu_load_short,host=server02 value=0.67", parameters);

Configure consistency via client options:

- InfluxDBClient client = InfluxDBClientFactory.createV1("http://influxdb_enterpriser:8086",
-    "my-username",
-    "my-password".toCharArray(),
-    "my-db",
-    "autogen");
+ InfluxDBClient client = InfluxDBClientFactory.createV1("http://influxdb_enterpriser:8086",
+    "my-username",
+    "my-password".toCharArray(),
+    "my-db",
+    "autogen", 
+    WriteConsistency.ALL);

Checklist

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

[codecov-commenter]

Codecov Report

Merging #329 (69a5239) into master (854f21f) will increase coverage by 0.16%.
The diff coverage is 94.68%.

❗ Current head 69a5239 differs from pull request most recent head f9e3d29. Consider uploading reports for the commit f9e3d29 to get more accurate results

@@             Coverage Diff              @@
##             master     #329      +/-   ##
============================================
+ Coverage     88.74%   88.90%   +0.16%     
- Complexity      615      627      +12     
============================================
  Files           151      152       +1     
  Lines          6129     6266     +137     
  Branches        289      299      +10     
============================================
+ Hits           5439     5571     +132     
- Misses          607      610       +3     
- Partials         83       85       +2     

Impacted Files	Coverage Δ
...otlin/com/influxdb/client/kotlin/WriteKotlinApi.kt	55.55% <ø> (ø)
...com/influxdb/client/reactive/WriteReactiveApi.java	100.00% <ø> (ø)
...src/main/java/com/influxdb/client/write/Point.java	90.66% <ø> (-0.07%)	⬇️
...ava/com/influxdb/client/write/WriteParameters.java	80.35% <80.35%> (ø)
...luxdb/client/kotlin/internal/WriteKotlinApiImpl.kt	95.00% <100.00%> (+0.88%)	⬆️
...client/reactive/internal/WriteReactiveApiImpl.java	97.54% <100.00%> (+0.34%)	⬆️
...ava/com/influxdb/client/InfluxDBClientFactory.java	100.00% <100.00%> (ø)
...ava/com/influxdb/client/InfluxDBClientOptions.java	96.75% <100.00%> (+0.37%)	⬆️
...b/client/internal/AbstractWriteBlockingClient.java	84.00% <100.00%> (+3.04%)	⬆️
.../influxdb/client/internal/AbstractWriteClient.java	94.73% <100.00%> (+2.54%)	⬆️
... and 4 more

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