[Feature Request] "Every {count} {intervalName}" support

[KamilSztandur]

I was wondering if we could add support for the localized strings like every {count} {intervalName}, for example:

• "every 2 weeks"
• "every 7 months"
• "every year" / "yearly"

In Unicode CLDR, there are predefined translations for every x <period> for various languages. It would be great if timeago could incorporate these, making it easier to display such recurring intervals in a localized way.

You can find more details in the Unicode CLDR specification.