Generate coverage test files and implement at CI systems

# Description

* Documentation : https://circleci.com/docs/2.0/configuration-reference/#store_test_results


Directory structure:

```
test-results
├── jest
│   └── results.xml
├── mocha
│   └── results.xml
└── rspec
    └── results.xml
```


config.yml syntax:

``` yml
- store_test_results:
    path: test-results
```