Add S3 from AWS as a provider

[ezeoleaf]

Is your feature request related to a problem? Please describe.
No

Describe the solution you'd like
Add the possibility to download a file from S3 using the API and use it as a provider to generate content to publish

Describe alternatives you've considered

Additional context

[savagedev]

I'm going work on this one next. I'm going to take the approach where the S3 object can contain either a JSON or CSV file format and then it retrieves this file and uses either the jsonfile or csvfile provider.