Add fields for crossing=traffic_signals presets (#453)

Adds fields for:
* `button_operated`
* `traffic_signals:arrow`
* `traffic_signals:countdown`
* `traffic_signals:minimap`
* `traffic_signals:sound`
* `traffic_signals:vibration`

data/fields/button_operated.json

@@ -0,0 +1,5 @@
+{
+    "key": "button_operated",
+    "type": "check",
+    "label": "Button Operated"
+}

data/fields/traffic_signals/arrow.json

@@ -0,0 +1,5 @@
+{
+    "key": "traffic_signals:arrow",
+    "type": "check",
+    "label": "Tactile Arrow"
+}

data/fields/traffic_signals/countdown.json

@@ -0,0 +1,5 @@
+{
+    "key": "traffic_signals:countdown",
+    "type": "check",
+    "label": "Countdown"
+}

data/fields/traffic_signals/minimap.json

@@ -0,0 +1,5 @@
+{
+    "key": "traffic_signals:minimap",
+    "type": "check",
+    "label": "Tactile Map"
+}

data/fields/traffic_signals/sound.json

@@ -0,0 +1,21 @@
+{
+    "key": "traffic_signals:sound",
+    "type": "combo",
+    "label": "Sound Signals",
+    "strings": {
+        "options": {
+            "yes": "Yes",
+            "no": "No",
+            "locate": {
+                "title": "Locate",
+                "description": "There is only a signal to find the pole"
+            },
+            "walk": {
+                "title": "Locate",
+                "description": "here is only the signal when walking is allowed"
+            }
+        }
+    },
+    "autoSuggestions": false,
+    "customValues": false
+}

data/fields/traffic_signals/vibration.json

@@ -0,0 +1,5 @@
+{
+    "key": "traffic_signals:vibration",
+    "type": "check",
+    "label": "Vibration"
+}