[Epic] Add security scanner integration #349

Original Pulp Redmine Issue: https://pulp.plan.io/issues/6872

Goal

Users storing content in pulp_python should derive benefit from security scanning of Python packages that are out there.

Existing Tools

The idea is to integrate a tool not make a new one. Here are some options I've read about from this article.

Scanning Python Code Itself

• Bandit
• pysa

Scanning Python Dependencies

• safety <-- freemium model with limited updates when not paid for