Updating to include Config.yml file [wip]

[hiimbex]

Work In Progress. This PR's goal is to check for a maintainer-specific toxicity threshold, and have the bot should reply by providing them with a link to the community guidelines.

TODO:

• [x] Add implementation to read yml file for maintainer set toxicity threshold
• [x] Open a PR in node-github to include the Code of Conduct API preview endpoint - Pull Request Opened here!
• [x] Add implementation here to fetch a repo's CoC and use it in the bot's comment
• [x] Add tests and lint
• [x] Get the code of conduct API endpoint enabled for github apps - https://github.com/github/github/pull/76074

cc/ @lindseyb