generate_violations_csv script

[lions1988]

This PR generate csv report that contains enabled violations in ACS

• Gets ACS API key and API Central URL as environment variables
• Mandatory --query_scope will limit the query for specific cluster, specific cluster and namespace or all violations
• Pulls all violations based on the query provided, loop through every violation (aka alert_id) and pull the image(s) violating the policy
• Saves an csv files under generated reports folder

[mfosterrox]

LGTM

[mfosterrox]

Nice job. I'll be trying this out a little later in the week. Thanks!