Add actual Redstone Controller model

src/main/kotlin/net/shadowfacts/phycon/network/block/redstone/RedstoneControllerBlock.kt

@@ -12,6 +12,7 @@ import net.minecraft.util.math.BlockPos
 import net.minecraft.util.math.Direction
 import net.minecraft.world.BlockView
 import net.minecraft.world.World
+import net.minecraft.world.WorldAccess
 import net.shadowfacts.phycon.PhysicalConnectivity
 import net.shadowfacts.phycon.network.FaceDeviceBlock
 import java.util.*
@@ -49,8 +50,8 @@ class RedstoneControllerBlock: FaceDeviceBlock<RedstoneControllerBlockEntity>(Se
 		return state.with(LIT, isPowered(context.world, context.blockPos, state[FACING]))
 	}
 
-	// todo: does this need to be separate from getStateForNeighborUpdate?
 	override fun neighborUpdate(state: BlockState, world: World, pos: BlockPos, neighborBlock: Block, neighborPos: BlockPos, bl: Boolean) {
+		// this can't be done in getStateForNeighborUpdate because getEmittedRedstonePower is defined in World not WorldAccess
 		if (!world.isClient) {
 			val wasLit = state[LIT]
 			val isLit = isPowered(world, pos, state[FACING])