Feedback: change the way plugins are loaded

Description

Currently

Plugins are npm packages that follow a specific structure dictated by Gluegun.
These plugins need to follow a name patter (prefix with atlas-fe), and the CLI load all available packages that
follow this pattern when instantiated.

To do

Plugins should be specified on `atlas-fe.config.js` file rather than loaded automatically, and it should be possible
to specify a configuration that we can pass to the plugins (like Gatsby), and loaded in the order they are defined.

Done

Assignee

Gerardo Leal

Reporter

Gerardo Leal