Adds variation to weather in factorio.

Modifies the game to have clear, cloudy, rainy & stormy weather!

Multiple different weather types:
Clear - Default factorio sunny weather.
Cloudy - Reduced light reaching the surface, dimmer screen and temporary less solar power.
Rainy - Rain splashes and a pitter-pattering sound.
Stormy - Heavy rain with flashes of lightning.

Options:
Ability to choose different weather presets for Nauvis.
Allows the length and ratio of Nauvis' day & night cycle to be altered.
Option to announce the change in weather in chat.
Ability to alter the length of time between changes in weather.

Compatibility:
Currently under development, might work in multiplayer (has yet to be tested).
Compatible with space exploration, however weather only occurs on Nauvis.

Known issues:
Rain does not render on radar view.

Future plans:
Add the ability for players to manually adjust weather probabilities.
Better integration with space exploration.
More weather types on different planets with space exploration installed (fog, snow, dust/sandstorms, ash clouds, meteor showers).
Biter triggering acid rain once a certain pollution level is met (and increasing frequency with more pollution).
Potentially add a weather station building which can predict weather and give signal outputs depending on current & future weather (must be built in orbit when using space exploration).

Thanks to Ludsoe & Steinio for creating the original Moweather mod https://mods.factorio.com/mod/moweather