Iris Shaders

This release primarily fixes a number of stability issues in Iris.

Fixes for 1.16.5 & 1.17.1: - Fixed Complementary not compiling on macOS in non-overworld dimensions - Avoid crashes with Physics Mod, but there are still some weird bugs with it - Fixed colored shadows not working (this was a regression shipped in 1.1.0) - Fixed clouds being cut off at low render distances when shaders are disabled - Added rudimentary support for atlasSize, needed by newer versions of Complementary Shaders - Fixed block breaking animations for block entities - Support separateAo for blocks rendered with the Fabric Rendering API - Fixed a number of issues related to the ordering of entity rendering