Add Yard Sort (w/ Andrew’s Hump yard addon)

https://www.nexusmods.com/railroader/mods/489

YardSort/Definition.json

@@ -0,0 +1,13 @@
+{
+  "manifestVersion": 5,
+  "id": "C_L_B.YardSort",
+  "name": "Yard Sort",
+  "version": "1.9.1",
+  "requires": [
+    {
+      "id": "railroader",
+      "notBefore": "2024.6.8"
+    }
+  ],
+  "assemblies": [ "YardSort" ]
+}