Add 4 lane balancer

blueprints/own_train.json

@@ -0,0 +1,45 @@
+{
+  "blueprint": {
+    "item": "blueprint",
+    "label": "test",
+    "entities": [
+      {
+        "entity_number": 1,
+        "name": "locomotive",
+        "orientation": 0,
+        "position": {
+          "x": 0,
+          "y": 0
+        }
+      },
+      {
+        "entity_number": 2,
+        "name": "cargo-wagon",
+        "orientation": 0,
+        "position": {
+          "x": 0,
+          "y": 7
+        }
+      }
+    ],
+    "stock_connections": [
+      {
+        "back": 2,
+        "stock": 1
+      },
+      {
+        "stock": 2,
+        "front": 1
+      }
+    ],
+    "icons": [
+      {
+        "index": 1,
+        "signal": {
+          "name": "rail"
+        }
+      }
+    ],
+    "version": 562949954797573
+  }
+}