Testing in webpack workflow

[iGitScor]

Hello contributors,

The plugin is test covered as unit library. We should add test in a webpack workflow.

Contribution

• Creation of a demo webpack build (1 html file, 1 css file)
• Use of this plugin
• Test the webpack build (the plugin result)

Tests

• [ ] cp command
• [ ] rm command

[Phinneas]

Can I take a shot at this one?