Coarse correction to drench rate from precipitation

[kevingranade]

Summary

SUMMARY: None

Purpose of change

It looks like the frequency with which rainfall effects were applied to the player were not adjusted when turn durations were changed, so the rate at which a player went from dry to drenched for a given level of precipitation was accelerated a great deal.

Describe the solution

Simply bail out of the drench calculation in 5 turns out of 6 to return the drench rate to the former level.

Describe alternatives you've considered

I don't want to mess with the various formulas surrounding this, and AFAIK the rainfall accumulation for e.g. funnels has already been adjusted, so there is nowhere to place a higher-level override.

Testing

need to walk around in some rain with various outfits and note the time to achieve the fully drenched state.
This was last adjusted here: #15867
so that sets the target times.