HopperOptimizations-Lithium 0.6.4

This release includes everything from Lithium's stable branch and an extension to the EntityTrackerEngine, which allows listening for entities entering and leaving arbitrary areas. This can be used to optimize hoppers (get the Hopper Optimizations mod here: https://github.com/2No2Name/hopperOptimizations/releases ) or end gateways, maybe even item frames.

Please report any bugs you find in the issue tracker (https://github.com/2No2Name/lithium-fabric/issues)