Add more datatypes

Summary:
This patch adds the following types:

• TouristAttraction
• FoodEstablishment

I added FoodEstablishment because otherwise getting more specific types
is a mess with schema.org's complex inheritance. This one is the most generic
type for that kind of stuff.

Test Plan: Compile only, but some of the other Places don't have tests yet.

Reviewers: vkrause

Reviewed By: vkrause

Subscribers: vkrause, KDE PIM

Tags: KDE PIM

Differential Revision: https://phabricator.kde.org/D11974