Bring the palisade templates under their own parent (instead of the stone wall).
While at it:
- Remove the stone cost/loot from palisades
- Change the gate tooltip to not mention stone walls
- Standartize palisade armour (don't reuse the walls' armour)
- Demand village phase instead of town phase for all palisades
- Remove stone wall classes from palisades
Patch By: Nescio
Differential Revision: https://code.wildfiregames.com/D1796