[5.1-rev5] ReGrowth 2 drizzle and fog storm weather not animating/updating

[NeveHanter]

Hey,

I've noticed that RG_Drizzle and RG_FogStorm weather aren't updating the overlay texture while playing with ReGrowth 2 (version 5.1-rev5 from Steam).

When investigating the issue I've noticed the ReGrowthCore.WeatherOverlay_Custom which they use doesn't tick the super class implementation of the TickOverlay method that might be the reason for the bug (the ReGrowthCore.WeatherOverlay_CustomTwo has such a call).

Cheers!