Early access vs. unreleased fonts.

https://github.com/google/fonts/pull/5518 was closed:

> The Early Access program should be considered obsolete and unsupported. We recommend that Homebrew not distribute these families.

This is fine of course. But how can fonts be distinguished between released fonts and early access fonts if there is no `EARLY_ACCESS.category` file present and the font is still in this repo.

In these cases it is also not clear whether some fonts are in early access or haven't been released yet. We use the script at

https://github.com/Homebrew/homebrew-cask-fonts/blob/master/developer/bin/import_google_fonts

to add/remove/update fonts. We are using this repo as source of truth and simply looping through the `apache`, `ofl` and `ufl` directories. I guess there is a better way to find which fonts are released?