Small Endermen

This release fixes tiny endermen not opening their mouths when angry.

This release fixes an issue where a client-only method would be loaded by Lithium on the dedicated server, causing the game to crash.

This release adds tiny endermen, which are even smaller than small endermen. In addition, small and tiny endermen now drop small and tiny ender pearls respectively, which have a higher maximum stack size but cover less distance.

This is the initial release of Small Endermen, supporting Minecraft 1.16.3 on the Fabric mod loader.