Migrate to public IntegralEnvision/integral

[jzadra]

• [ ] Check for any thing in integral that isn't in integral-private
• [ ] Add github do's and don'ts to readme (and also best practices guide)
• [ ] either remove integral and rename integral-private, or push to integral?

[kheal]

moved to public. previous public repo has been moved to a private archive and was renamed integral_archive