Panthalassa

Changelog:
-Port to 1.18.2
-Implement External Spawning as a config option.
-Implement Crush Depth as a config option.
-Implement Random Swimming wall checks as a config option.
-By default, disable Random Swimming wall checks.
-Tweak spawn rates within Panthalassa.
-Fix block breaking and tools not working correctly.
-Add recipes for all Panthalassa blocks.
-Fix entities getting stuck on 1 block deep water.
-Multiple code optimizations.