Speed up cable Segment splitting

src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/cable/EnergyCableGraph.kt

@@ -307,13 +307,21 @@ class EnergyCableGraph : GraphNodeList<EnergyCableBlockEntity.Node, EnergyCableG
 				result.add(this)
 
 				for (v in itr) {
-					v.segment = Segment()
+					v._segment = Segment()
+					v.segment.nodes.add(v)
+					v.segment.throughput = v.energyThroughput
+					v.segment.throughputKnown = true
 					v.segment.transferredLastTick = transferredLastTick
 					v.segment.paths.addAll(paths)
 					paths.forEach { it.segments.add(v.segment) }
 					result.add(v.segment)
 				}
 
+				nodes.clear()
+				nodes.add(list[0])
+				throughput = list[0].energyThroughput
+				throughputKnown = true
+
 				return result
 			}
 		}