add 4 more nested house foundations

[curstwist]

Summary

SUMMARY: Content "Adds 4 new house foundations for nested chunks"

Purpose of change

Add more housing variety.

Describe the solution

Adds 4 more single story foundations for the nested chunks.
This is dependent on: Add nested houses 1 #34691 being merged.

Describe alternatives you've considered

see previous PR.

Testing

I've spawned a test area in a world with my houses and toured them looking for poorly placed nests. There may be some I'll need to winnow out as they are encountered. It's difficult to account for all permutations.

I also toured a size 16 city to look at their spawn rates and placement. I'm pretty happy with their representation. I lowered duplexes and prepper houses which were slightly too common.

Additional context

House 2:

House 3:

House 4:

House 5: (no cars spawning yet)

[Destragon]

Do these houses have any bathroom item spawns like softdrugs and harddrugs?

Edit:
I see the bathroom item spawns are in house_w_palette.json in the other pull request. 10% chance for softdrugs sounds really low though. Most houses have 75% for softdrugs as well as 15% for harddrugs.

[curstwist]

Do these houses have any bathroom item spawns like softdrugs and harddrugs?

Edit:
I see the bathroom item spawns are in house_w_palette.json in the other pull request. 10% chance for softdrugs sounds really low though. Most houses have 75% for softdrugs as well as 15% for harddrugs.

I've adjusted them some, I added cleaning and hard drugs to the list and upped softdrug spawns.
Using x,y coordinates vs. explicit placement via a symbol tends to result in different spawn levels, so I didn't use your suggested percentages. They are reasonably generous now, with 2-5 items spawning in the sinks. These item_groups will be swapped out for an SUS style item_group when I get to that part.