Fix wiki / update wiki

[Ferdzz]

Because update 4.8.0 required a large restructure of the project, the wiki data gen has not been implemented.

This ticket is to port the wiki tags and the wiki JSON generation from older versions to now.

The wiki itself might need to be recreated, as it was built using architecture I'm unfamiliar with. Keeping it simple for easy maintenance in the future would be great

Therefore this ticket is split into two parts

1. Port the wiki generation (@Wiki) from 4.7 into master
2. Update the wiki website / create a new website

Link to the old wiki, now broken because it's pointing to assets who have been moved: https://binarskugga.github.io/PlaceableItems-Wiki/ . Source: https://github.com/BinarSkugga/PlaceableItems-Wiki

If you are interested in helping on either part 1 or 2, please let me know!