Add '/hydro-operator-bkw.json'

Query hydro power plants operated by BKW:

(node["generator:source"="hydro"]["operator"="BKW"];
node["plant:source"="hydro"]["operator"="BKW"];
way["generator:source"="hydro"]["operator"="BKW"];
way["plant:source"="hydro"]["operator"="BKW"];
relation["generator:source"="hydro"]["operator"="BKW"];
relation["plant:source"="hydro"]["operator"="BKW"];)

N.B.: case insensitive search does not work: node["operator"~"^BKW$",i];

hydro-operator-bkw.json

@@ -0,0 +1,18 @@
+{
+    "type": "overpass",
+    "name": {
+        "en": "Hydro power plants - BKW",
+        "de": "Wasserkraftwerke - BKW",
+        "fr": "Centrales hydroélectriques - BKW"
+    },
+    "query": {
+        "7": [
+            "(node[\"generator:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
+            "node[\"plant:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
+            "way[\"generator:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
+            "way[\"plant:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
+            "relation[\"generator:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
+            "relation[\"plant:source\"=\"hydro\"][\"operator\"=\"BKW\"];)"
+        ]
+    }
+}