new: add support for connections to aws rekognition & comprehend

[cloudguruab]

As a user I want to have the ability to aggregate my existing machine learning models with AWS Rekognition or Comprehend using Apollo. We will need to integrate the ability for users to execute Apollo.use statements for setting up their aggregation with AWS. Ex. Apollo.use("aws-comprehend", "specific-model-or-metadata...") comprehend or Apollo.use("aws-rekognition", "specific-model-or-metadata...") rekognition