Spawn Balance Utility

Version 12.01 Fabric,  First limited feature release.

* does not include structure spawn weight feature yet.
* does not include mass addition feature yet.

Does include ability to control spawn weight by biome and to control spawn group size.

Does include ability to simply drop in and run to "fix" extreme spawn weights, raising up to a minimum and lowering down to a maximum.

A reminder:
This spawn table

1, witch, 1,2

160, skeleton, 3,4

===

161 (all mobs)

WIll produce 1-2 witch every 1 of 161 spawn attempts. 

Will produce 3-4 skeleton every 160 of 161 spawn attempts.