*Fixed occlusion culling issues on the floating rubble puzzle

*backported features from my newest project back to Lim, including:
-Water caustics
-Parallax Mapping on terrain
-Rippling water
-More performant leaf animations
(NOTE: A known  issue with this patch is the aquaduct water, which has a very strange appearance with the new water effects.)

*Fixed (reverted) an issue with saving introduced in the previous patch
(NOTE: Saving is still inconsistent across the board. Things such as the lit status of candleabras and the codex. This should not impact a playthrough and are usually just graphical errors. Important key items are always saved properly on reload.)

*Tweaked Lighting/Tonemapping. This is just to my personal taste, and my deeper understanding of how the Godot Engine handles lighting.