Show annotations on PR reviewers (#169)

PR reviewers are now annotated with:

- **Out-of-office status:** From Outlook auto-reply messages. Hover over to see the full message
- **Owner info:** How many files the reviewer is listed as an owner, alternate, and expert. Hover over to see which files
- **Country flags:** Shown if they are they are in a different country than you (these reviewers could have a longer response time due to timezones)
- **Employment status:** Ex-employee, leave of absence, etc.

.eslintrc.js

@@ -33,5 +33,6 @@ module.exports = {
     "require-yield": "error",
     "linebreak-style": 0,
     "arrow-parens": 0,
+    "prefer-destructuring": 0,
   }
 };