This commit also removes the utils.js engine file, moving some of it's
content to config.js and some to engine.js .
(cherry picked from commit 018ee5a4dc)
Applies to javascript files inside the platform library folder, the
exposed Engine code, and any javascript files in modules.
Files ending with ".externs.js" will be ignored, you can create a
".eslintignore" file to specify extra files to be ignored.