add field for "usage" tag on canals (see #348)

data/fields/usage_waterway.json

@@ -0,0 +1,17 @@
+{
+    "key": "usage",
+    "type": "combo",
+    "label": "Usage Type",
+    "strings": {
+        "options": {
+            "transportation": "Transportation",
+            "transmission": "Transmission",
+            "irrigation": "Irrigation",
+            "headrace": "Headrace",
+            "tailrace": "Tailrace",
+            "spillway": "Spillway"
+        }
+    },
+    "autoSuggestions" : false,
+    "customValues" : false
+}

data/presets/waterway/canal.json

@@ -4,6 +4,7 @@
         "name",
         "structure_waterway",
         "width",
+        "usage_waterway",
         "intermittent",
         "lock"
     ],
@@ -19,5 +20,12 @@
     "tags": {
         "waterway": "canal"
     },
+    "terms": [
+        "headrace",
+        "irrigation",
+        "spillway",
+        "tailrace",
+        "waterpower"
+    ],
     "name": "Canal"
 }

interim/source_strings.yaml

@@ -3190,6 +3190,22 @@ en:
           # usage=tourism
           tourism: Tourism
         terms: '[translate with synonyms or related terms for ''Usage Type'', separated by commas]'
+      usage_waterway:
+        # usage=*
+        label: Usage Type
+        options:
+          # usage=headrace
+          headrace: Headrace
+          # usage=irrigation
+          irrigation: Irrigation
+          # usage=spillway
+          spillway: Spillway
+          # usage=tailrace
+          tailrace: Tailrace
+          # usage=transmission
+          transmission: Transmission
+          # usage=transportation
+          transportation: Transportation
       utility:
         # utility=*
         label: Utility
@@ -9856,6 +9872,7 @@ en:
       waterway/canal:
         # 'waterway=canal\n\nTranslate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).'
         name: Canal
+        # 'terms: headrace,irrigation,spillway,tailrace,waterpower'
         terms: '<translate with synonyms or related terms for ''Canal'', separated by commas>'
       waterway/canal/lock:
         # 'waterway=canal + lock=yes\n\nTranslate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).'