EternalExchange 1.0.0 for Minecraft 1.21.1

Initial public release for Minecraft 1.21.1 on Fabric.

Installation: Fabric Loader for 1.21.1, Fabric API, and this jar in your mods/ directory. Works on clients and dedicated servers.

Includes the complete equivalent-exchange loop: the EMC engine, Transmutation Table and Tablet, condensers, collectors, relays, matter furnaces and pedestals, dark/red matter equipment, the gem armor set, rings and amulets, klein stars, and alchemical fuels. See the README for details and current limitations.

Marked as pre-release pending wider play-testing. Please report issues via the issue tracker.