6.6.0+1.21
- tropical spiders can spawn with potion effects and skeleton riding it (like normal spiders)
- mob conversion is data driven
- removed "frycmobvariants:is_underground" tag (using "c:is_cave" instead)
- added 4 config options: whether mobs spawned by spawners, spawn eggs and commands should convert
- convert chance options use range from 0.0 to 1.0 instead of 0 to 100
- most config options now require /reload for the changes to start working