All keys in a translation file should be in the base file (en.json).
When there are keys in the base file that are not in a translation,
the translation file test is skipped.
- separated tests into e2e and unit directories
- created configs directory structure to support test framework
- added/modified `npm run test`, `npm run test:unit` and `npm run test:e2e` to target all, unit and e2e tests respectively
- modified some of the test names to be more descriptive
New structure of the Test Suite has following directory tree:
```
tests
├── configs
│ ├── env.js
│ └── modules
│ ├── clock
│ │ ├── clock_12hr.js
│ │ ├── clock_24hr.js
│ │ └── clock_showPeriodUpper.js
│ └── helloworld
│ └── helloworld.js
├── e2e
│ ├── env_spec.js
│ └── modules
│ ├── clock_spec.js
│ └── helloworld_spec.js
└── unit
├── functions
│ └── cmp_versions_spec.js
└── global_vars
└── root_path_spec.js
```
