Adding initial version of pull request template

[hridyeshpant]

Pull request template for committing changes to this repo.

[codecov]

Codecov Report

Merging #763 into master will increase coverage by 0.21%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #763      +/-   ##
==========================================
+ Coverage   88.41%   88.63%   +0.21%     
==========================================
  Files         171      173       +2     
  Lines        3540     3713     +173     
  Branches      244      262      +18     
==========================================
+ Hits         3130     3291     +161     
- Misses        330      335       +5     
- Partials       80       87       +7     

Impacted Files	Coverage Δ
...a/adaptivealerting/kafka/KafkaDetectorManager.java	89.85% <0.00%> (-1.72%)	⬇️
...pedia/adaptivealerting/kafka/StreamsAppConfig.java	100.00% <0.00%> (ø)
...ealerting/modelservice/web/DetectorController.java	100.00% <0.00%> (ø)
...adaptivealerting/modelservice/entity/Detector.java	92.85% <0.00%> (ø)
...vealerting/modelservice/util/DetectorDataUtil.java	91.17% <0.00%> (ø)
...ting/modelservice/service/DetectorServiceImpl.java	96.96% <0.00%> (+0.09%)	⬆️
...tivealerting/kafka/KafkaAnomalyDetectorMapper.java	79.66% <0.00%> (+6.32%)	⬆️

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