P0-B5: Part 1281: Debugging, Improvements

I have made several improvements to the procedural city builder. The system should now spawn a lot more decorations and other world objects in the scene.

The next goal is to model these. I will keep the art simple for now, I am mainly trying to add greater immersion and gameplay features, that art is not a priority for the moment.

The artwork and texturing is mostly done, and the importing should be done in a few days. I can then work on adding the new features.