feat(inventory): add prowler scanner-inventory(auditor mode)

[pedrooot]

Description

This PR adds Prowler inventory for the AWS provider.

Using the flag --scan-inventory will create an output folder filled with all the information retrieved for the provider. You will find all the info inside /output/<provider>/<service>/<service>.json Developed with help and idea from @dev786

Checklist

• Are there new checks included in this PR? Yes / No
  • If so, do we need to update permissions for the provider? Please review this carefully.
• [ ] Review if the code is being covered by tests.
• [ ] Review if code is being documented following this specification https://github.com/google/styleguide/blob/gh-pages/pyguide.md#38-comments-and-docstrings
• [ ] Review if backport is needed.

License

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.