Expand ScoutSuite AWS coverage

[ramimac]

Currently, the following findings are not supported for supported services

• s3

  • delete actions authorized to all principals
  • get actions authorized to all principals
  • list actions authorized to all principals
  • manage actions authorized to all principals
  • put actions authorized to all principals
  • all actions authorized to all principals
  • bucket world-listable
  • bucket world-listable (anonymous)
  • bucket world-writable
  • bucket world-writable (anonymous)
  • bucket permissions world-readable
  • bucket permissions world-readable (anonymous)
  • bucket permissions world-writable
  • bucket permissions world-writable (anonymous)

• iam

  • managed policy findings
  • root account findings
  • unused role for ec2

[ramimac]

• rds
  • security group findings
  • snapshot is publicly accessible
• redshift
  • security group findings
• s3
  • MFA delete (currently not supported by [docs] Clarify mfa_delete cannot toggle state hashicorp/terraform-provider-aws#5953)