update v17.9

"Discord Suggestions" is a short series that will feature random prompts
from the #suggestions channel on our Discord Server.

The aim of this series is to chop down the long suggestion list, without
having to wait a specific theme. 

Each batch will last 5-10 updates and is planned on a bi-monthly basis (~)

-

- Added more single car wrecks and stacked car wrecks
- Added some stacked barrels and an habitable container
- Updated the theme and single files with the new stuff

See you and happy game-making! :)