Improved generation for buildings inside AI villages

[jakmeier]

Current Situation

AI villages have some buildings generated when they are created, starting with version 0.1.3. With the first PoC implemented in aa7610b, some trees are generated with some nests.

Goal

There are several options how the generated villages could become more interesting. There could certainly be more diverse buildings and there is also room for improvement when it comes to placing them aesthetically. Your creativity is very much welcome!

Relevant Code Sections

village_creation.rs::{add_anarchists_village, add_random_forest_to_village}

Screenshots

Example of generated trees

Example of generated nests