CI/CD support - in the tool

[guy-ps]

For CI/CD support the tools needs to

• [ ] Exit with a non-zero exit code if a test fails
• [ ] Allow for non blocking mode(exit with 0 no matter what)
• [ ] Allow to configure minimum severity for a non-zero exit
• [ ] Maybe exit with a non-zero exit code for some other failures

These will allow the tool to be used within a CI/CD pipeline, and later the tool will be wrapped within a docker container and a GitHub action.