Added
- Apples can be harvested from apple trees.
- Dwarves can get perks now. Hardcoded for all for now "Allergic to water". They get damaged by rain and don't need to drink water to survive.
- When raining, dwarves run to cover if one is available (e.g. in a cave).
- Render cells as full black if not exposed to light (to prevent seeing through terrain)
Fixed
- Dwarves who die in their sleep would keep snoring forever.
- Berries growing back too fast.
- Winter textures for some cells
- Rain sounds doesn't won't stop after 24h
