[Feature] Let Pastel Network see Knowledge Gem 'slots'

[abilliontrillionstars]

Allow Pastel Network nodes to see and interface with the Knowledge Gem slots on the Cinderhearth, Black Hole Chest, and the 'slot' in the Enchanter. Use cases would let a pastel network transport the Gem to a "charger station" like a hearth or chest, and return to the Enchanter when in use. Cinderhearth in particular could possibly benefit from sided inventories but requires a fix for #678