Other changes to expose new operation

data/core.yaml

@@ -106,6 +106,11 @@ en:
       not_connected: There aren't enough lines/areas here to disconnect.
       connected_to_hidden: This can't be disconnected because it is connected to a hidden feature.
       relation: This can't be disconnected because it connects members of a relation.
+    flip:
+      title: Flip Horizontal
+      description: Flip this area horizontally.
+      key: F
+      annotation: Flipped an area horizontally.
     merge:
       title: Merge
       description: Merge these features.

dist/locales/en.json

@@ -137,6 +137,12 @@
                 "connected_to_hidden": "This can't be disconnected because it is connected to a hidden feature.",
                 "relation": "This can't be disconnected because it connects members of a relation."
             },
+            "flip": {
+                "title": "Flip Horizontal",
+                "description": "Flip this area horizontally.",
+                "key": "F",
+                "annotation": "Flipped an area horizontally."
+            },
             "merge": {
                 "title": "Merge",
                 "description": "Merge these features.",

modules/actions/index.js

@@ -31,3 +31,4 @@ export { actionRotateWay } from './rotate_way';
 export { actionSplit } from './split';
 export { actionStraighten } from './straighten';
 export { actionUnrestrictTurn } from './unrestrict_turn';
+export { actionFlip } from './flip';

modules/operations/index.js

@@ -9,3 +9,4 @@ export { operationReverse } from './reverse';
 export { operationRotate } from './rotate';
 export { operationSplit } from './split';
 export { operationStraighten } from './straighten';
+export { operationFlip } from './flip';