Create a scheduled job that scans for unattached EBS volumes and deletes them

Create a scheduled job that scans for unattached EBS volumes and deletes them so that we don't leave unattached EBS volumes in the AWS account and so we can achieve cost savings.

Ideas for the solution are to use a lifecycle policy or a scheduled Lambda that removes unattached EBS volumes.

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@alieberman this issue has been inactive for 30 days and is being labelled as stale. If this issue is still required please take action by removing the stale label and commenting with an update, status, or justification. If this issue is not required please close it or label it as delete-me. If no action is taken this issue will be auto closed in 60 days.

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