Enabling pack through options.json

[pacostas]

Merge After otherwise it does not pass

• https://github.com/paketo-community/ubi-base-stack/pull/42

Summary

This PR enables experimental features for pack by using the options.json file.

Use Cases

Checklist

• [x] I have viewed, signed, and submitted the Contributor License Agreement.
• [ ] I have linked issue(s) that this PR should close using keywords or the Github UI (See docs)
• [x] I have added an integration test, if necessary.
• [x] I have reviewed the styleguide for guidance on my code quality.
• [x] I'm happy with the commit history on this PR (I have rebased/squashed as needed).