Serene Seasons

- Added a config option to change the starting sub season for new worlds (Can choose between the 12 sub seasons, or set it to random).
- Added a config option to disable snow/ice generation in Winter (Will still appear in biomes that are always snowy).
- Added a config option to disable the frequency of weather changing based on the season.
- Fixed rain appearing in some biomes during winter.
- Fixed crop config naming (NOTE: If you've added crops from other mods, you'll need to make sure your configs are fixed to match).