Add support for cookie activated feature toggles

I think this can probably be done with Cookie Condition ( https://www.drupal.org/project/cookie_condition → ) in combination with Feature Toggle i some cases - for example, blocks, but would agree it'd be a useful feature to enable conditions including cookies.

Switches ( https://www.drupal.org/project/switches → ) allows this behaviour but it looks like that module is not longer being maintained.

Arbitrary conditions on toggles in general would be great, like blocks, so certain toggles could be enabled on a list of paths, certain node type, query string parameter, etc.