Adds a new google cse engine as an alternative to the currently broken html
google engine.
It works by generating a token which is cached for 1 hour and it only uses the
public CSE id from blackle.com. We do have two others but I think just
hardcoding one will be enough.
Will be broken in 2027 due to google deprecating it but I it will be good while
it lasts.
I found I can get up to 20 results per page. Setting safesearch and language
works and I just copied the traits from the google engine.
Also set old google engine as inactive as it is completely broken for now.
