Add missing signaller change from Bathampton - Westbury Map

Extend Bathampton - Westbury Map to include Westbury South Jn

static/mapFiles/yaml/0260.yaml

@@ -1,5 +1,5 @@
-routeStart: Bathampton Junction
+routeStart: Bathampton Jn
-routeEnd: Westbury
+routeEnd: Westbury South Jn
 routeId: "0260"
 updated: 2026-03-01
 checked: 2026-03-01
@@ -111,6 +111,12 @@ routeDetail:
   miles: 5
   chains: 71
 
+- type: signallerChange
+  from: TVSC Bath WS (BL)
+  to: Westbury PSB (W)
+  miles: 6
+  chains: 55
+
 - type: crossing
   kind: foot
   name: Belcombe Road Foot Crossing
@@ -233,6 +239,16 @@ routeDetail:
   miles: 109
   chains: 64
 
+- type: junction
+  name: Westbury South Jn
+  diverges: left
+  direction: down
+  description: Up/Dn Main to Fairwood Jn
+  goto: "0210"
+  entryPoint: "fairwood-jn"
+  miles: 110
+  chains: 7
+
 - type: continues
   routeName: Westbury - Southampton Ctl
   routeId: "0265"