[NEW] Allow automatically approving wiki-plugins on pages installed by profiles

Some wiki-plugins require admin approval before they are executable. If turned on, then all wiki-plugins that are on wiki pages created via profiles are automatically approved.

This saves the admin who creates a lot of wiki pages with such plugins on them via profiles from having to approve them manually. Yes, it's possible to approve all unapproved plugins via one click in the approval screen, but if there are actually plugins created by other users that need review you can't just do that.

This is also really necessary if you are deploying a site entirely from profiles via a machine scripted process where there is no human admin in the process.