Patch 0.9.1

Hi there! Minor quality of life update:

1. Fixed Hunger calculation. It was not working in the last version.
2. Added light to the main base building, so the camp is brighter during the night
3. Added color coding for job creation and building management (Green = "good", Red = "caution!")
4. Improved indication for required resources
5. Various UI tweaks in save, building, and production UI