Allow seasonal color changes without reloading worldRenderer

[Andrew6rant]

Marking as a draft PR for now because this has no effect with Sodium enabled.
You could get around that with a simple check,

if Sodium:
    worldRenderer.reload(); #same as current implementation
else:
    worldRenderer.reloadOnlyColors(); #new optimized way

But I kinda want to see if I can get it fully working both with and without Sodium. Up to you