feat: Add formatting for CLI stdout output

[bryantbiggs]

Description

• Format output sent to stdout; currently uses a tabular format
• Format output of playbook report to use same formatter as stdout, but for markdown
• Re-order stdout output to follow sub-groups (AWS -> EKS -> K8s) and sequential check number

Motivation and Context

• Resolves Formtat output for stdout when reporting from a CLI interface #1
• Provides consistency in terms of reporting across different formats

Acknowledgment

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