[GCI '18] Added Code Coverage to 'cloud-storage' Unit Tests

[angeryrohan]

Added Code Coverage

• Used Ava.js & Istanbul, a JavaScript test coverage tool.

• Imported nyc from Istanbul in particular for coverage purposes

• Ignored MacOS junk by adding it in .gitignore

This is how the coverage test looks like!

---

Improved Dynamic Command Registering

• Included const fs = require('fs');

• Saved base (main) path

• Searching all folders inside 'cli-commands' to grab all implementations of cmd.js

• Mapping them using the commandsArray

• Deleted src/services/index.js

Before

After

Removed

Successful