Add option for packaging multiple component as plugins

[૮༼⚆︿⚆༽つ]

Ability to generate vue file plugin in src/index.js for storing multiple components in src/components/*.vue like in many Vue UI framework.

Reference

to many in 😂

1. https://alligator.io/vuejs/creating-custom-plugins/ - Tips: loop through components folder and use require('${name}').default