[Chapel Merge] Create CODE_OF_CONDUCT.md

Branch: refs/heads/main
Revision: 4f94f0c
Author: mstrout
Link: Unavailable
Log Message:

Merge pull request #19532 from chapel-lang/add-code-of-conduct-1

Create CODE_OF_CONDUCT.md

Modified Files:
A CODE_OF_CONDUCT.md

Compare: https://github.com/chapel-lang/chapel/compare/f20bd62a1a03...4f94f0c4b352