Add metrics combinator entity, GUI, and related functionality; enhance power and production stats tracking

Greatly improved train trip perfomance by culling table after sending

Fixed formatting in many places

data.lua

@@ -0,0 +1,55 @@
+-- ENTITY
+local entity = table.deepcopy(data.raw["constant-combinator"]["constant-combinator"])
+
+entity.name = "metrics-combinator"
+entity.minable = {
+    mining_time = 0.1,
+    result = "metrics-combinator"
+}
+entity.allow_copy_paste = true
+entity.icon = "__base__/graphics/icons/constant-combinator.png"
+entity.icon_size = 64
+--entity.operable = false
+entity.flags = { "get-by-unit-number", "placeable-neutral", "placeable-player" }
+
+-- ITEM
+local item = {
+    type = "item",
+    name = "metrics-combinator",
+    icon = "__base__/graphics/icons/constant-combinator.png",
+    icon_size = 64,
+    subgroup = "circuit-network",
+    order = "c[combinators]-c[metrics-combinator]",
+    place_result = "metrics-combinator",
+    stack_size = 50
+}
+
+-- RECIPE (sichtbar von Spielstart)
+local recipe = {
+    type = "recipe",
+    name = "metrics-combinator",
+    enabled = true,
+    allow_quality = true,
+
+    ingredients = {
+        {
+            type = "item",
+            name = "electronic-circuit",
+            amount = 1
+        }
+    },
+
+    results = {
+        {
+            type = "item",
+            name = "metrics-combinator",
+            amount = 1
+        }
+    }
+}
+
+data:extend({
+    entity,
+    item,
+    recipe
+})