Adds community files to Fueled repos that haven't setup their own.

GitHub supports organization-wide community health files in a specially named .github repository to serve as organization-wide defaults for all repositories within their organization. Where sensible, custom community health files should be created for our repos, but that's not always necessary or practical.

The following are the default CODE_OF_CONDUCT.md, CONTRIBUTING.md, ISSUE_TEMPLATES, and PULL_REQUEST_TEMPLATE.md files for Fueled repositories that do not have custom ones themselves. Note that these default files won’t appear in the file browser or Git history for each repository, but they will be surfaced throughout developers’ workflows, such as when opening a new issue or when viewing the Community Profile, just as if it were committed to the repository directly.

Active: Fueled is actively working on this, and we expect to continue work for the foreseeable future including keeping tested up to the most recent version of WordPress. Bug reports, feature requests, questions, and pull requests are welcome.