P0-B7: Part 1383: Debugging, Improvements

I have made extensive improvements to the object placement system in the world.

The system is now capable of searching for the flattest terrain within a given radius of the player in order to place objects.

This makes it much less likely that the objects will be obscured by the terrain, or that they will be hanging off of the edge of steep terrain.

I have also made some improvements to AI spawning, and discovered some additional bugs with adding AI characters as crew members.

I believe I have fixed all of these issues, but I will need to do some more testing to be absolutely sure.

The next goal is to test the project more with the remote server and executable.