Create CODE_OF_CONDUCT.md

[smcnab1]

Proposed change

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update
  • [ ] Spelling, grammar or other readability improvements (main branch).
  • [ ] Adjusted missing or incorrect information in the current documentation (main branch).
  • [ ] Removed stale or deprecated documentation.

Additional information

• Link to parent pull request in the codebase:
• Link to parent pull request in the Brands repository:
• This PR fixes or closes issue: fixes #

Checklist

• [ ] I have performed a self-review of my code
• [ ] If it is a core feature, I have added thorough tests.
• [ ] Do we need to implement analytics?
• [ ] Will this be part of a product update? If yes, please write one phrase about this update.