Add villager in cottage landmark

Add a villager in the cottage, if not abandoned/ruined
Add forge and graveyard

Add forge and graveyard landmarks
Correct buried chest coordinates for cottage
Fix forge render, corrections to graveyard

Forge render completed
Graveyard add flowers, correct signs
Improvements to graves

Add flowers in pots (so they can sit on gravel or sand), and correct the
grave inscription orientation.
Cosmetic changes to Forge and Graveyard