Beware the Dark [FORGE]

Second alpha test build for the upcoming 0.4 version/1.19 port
REQUIRES TERRABLENDER

Changelog:
*Fireflies, light emitting and immovable/invincible mobs that spawn in forests/plains at night (they can be caught with the new bug net)
*Butterflies, they spawn in plains biomes (there is also a cosmetic-variant that spawns in jungles), their drops are butterfly wings and the rare butter food-item
*Three new science machine unlocks: bug nets, pumpkin lanterns and backpacks
*Bug net, can be used to catch fireflies and butterflies
*Caught butterflies can be used to plant flowers and butterflies also will spawn from flowers every 38s if the player is close enough to any flower
*Pumpkin Lanterns, stationary light sources that light up during the dusk and night (they also decay over time, disappearing when 'fully rotten')
*Backpacks, items with their own small 9-slot inventory
*Backpacks can be equipped to your chest slot, press B while they are equipped in said slot to open their inventory
*New crock pot recipes: Butter Muffin and Waffles (respectively butterfly wings + veg and butter + berries + eggs + filler)
*Some minor issues with crock pots have been fixed; they now tick-animate and emit light again too