Fix Windows registry detector for Steam install

Match with upstream: Use the game's modInfo generator

Small fixes

Match with upstream

Implement automatic game version detection for modinfo

Bump version number

Refactor buildscripts; use Quiltflower decompiler to produce src line numbers

Use FabricMC for Fernflower engine instead

fix ant move error, remove -ren decomp flag, cleanup

Added readme, small build.gradle change

Added decompile task, rearrange build.gradle a bit

First commit.