crossing: Introduce @templates/crossing/traffic_signal

This extract the three fields to be reused in all traffic_signals presets.
- "button_operated"
- "traffic_signals/sound"
- "traffic_signals/vibration"

Nothing else is changed, this is just an extraction into a template.

data/presets/@templates/crossing/traffic_signal.json

@@ -0,0 +1,24 @@
+{
+    "fields": [
+        "button_operated",
+        "traffic_signals/sound",
+        "traffic_signals/vibration"
+    ],
+    "geometry": [
+        "point",
+        "line"
+    ],
+    "tags": {
+        "@template": "crossing/traffic_signal"
+    },
+    "searchable": false,
+    "locationSet": {
+        "include": [
+            "999"
+        ],
+        "exclude": [
+            "999"
+        ]
+    },
+    "name": "{point}"
+}

data/presets/highway/crossing/traffic_signals.json

@@ -3,9 +3,7 @@
     "fields": [
         "{@templates/crossing/defaults}",
         "{@templates/crossing/markings}",
-        "button_operated",
-        "traffic_signals/sound",
-        "traffic_signals/vibration",
+        "{@templates/crossing/traffic_signal}",
         "crossing_raised"
     ],
     "moreFields": [

data/presets/highway/cycleway/crossing/traffic_signals.json

@@ -3,9 +3,7 @@
     "fields": [
         "{@templates/crossing/defaults}",
         "{@templates/crossing/markings}",
-        "button_operated",
-        "traffic_signals/sound",
-        "traffic_signals/vibration",
+        "{@templates/crossing/traffic_signal}",
         "{@templates/crossing/geometry_line}"
     ],
     "moreFields": [

data/presets/highway/footway/crossing/traffic_signals.json

@@ -3,9 +3,7 @@
     "fields": [
         "{@templates/crossing/defaults}",
         "{@templates/crossing/markings}",
-        "button_operated",
-        "traffic_signals/sound",
-        "traffic_signals/vibration",
+        "{@templates/crossing/traffic_signal}",
         "{@templates/crossing/geometry_line}"
     ],
     "moreFields": [