fix: buildings on walls are considered outside and can break down even when between enclosed rooms

fix: the 'water freezes' mod causes sand to remain on water tiles when the sand fell on ice tiles

Feature: realistic planets: add integration

Minor fix: Game condition implies sandstorms are always forced

Refactor: Move Breakdown logic from harmony patch to WeatherEvent
Fix: Sand recache always uses current map rather than map with sandstorm

Chore: Remove debug messages

Fix: Sand not being removed due to over-tuned value difference checking

Fix: Overambitious caching leading to x0 sand add rate

Change: Increase sand buildup rate
Change: Reduce sandstorm commonality weight to 65% in most circumstances
Change: Reduce sandsturm duration to only last between 3-24 hours

Fix: Stone smoothing terrain causes double-job with terrain issues