Add missing Comment properties

I discovered that a lot of `Comment` Properties are missing inside the useragent sections inside the ison resource files.

These Properties are used to detect sections inside the ini files who are created just to keep the files small by gouping properties together. (Like written in Issue #3.)

I think every `useragent` section inside the resource json file should have a `Comment` property. I added a check for this, and I added all missing Comment properties.