Patched

Changes

This is mostly a modder-facing update, adding two things.

First, the patch datagen stuff now supports Codecs in all of the methods taking Objects, and also now allows providing an alternate Gson for serialization in the Object versions. There's also been some minor javadoc improvements in that area.

Second, Patched now supports reading its metadata block from the loader-specific mod metadata files! This means that modders can finally ditch their pack.mcmetas and move this data to their fabric.mod.json/neoforge.mods.toml! See the recently added section in the 'Installation' document for the exact syntax.