feat: Allow configurable context menus (#2894)

* feat: Context menu

feat: Custom context menu

Adding documentation

PR updates

* fix: Capture tool exception

* PR updates

* Add fully worked out examples in the basic test mode/extension

* Fix the menu display

* fix: Make the commands on clicks much more configurable

* Wait for load before double clicking

* docs

* PR changes - nothing functional, just moving things endlessly

* PR comments

* PR changes - rename the default context menu

* Renamed the cornerstoneContextMenu to measurementsContextMenu

* Add chevron right to the sub-menus

extensions/default/src/CustomizeableContextMenu/defaultContextMenu.ts

@@ -0,0 +1,31 @@
+const defaultContextMenu = {
+  id: 'measurementsContextMenu',
+  customizationType: 'ohif.contextMenu',
+  menus: [
+    // Get the items from the UI Customization for the menu name (and have a custom name)
+    {
+      id: 'forExistingMeasurement',
+      selector: ({ nearbyToolData }) => !!nearbyToolData,
+      items: [
+        {
+          label: 'Delete measurement',
+          commands: [
+            {
+              commandName: 'deleteMeasurement',
+            },
+          ],
+        },
+        {
+          label: 'Add Label',
+          commands: [
+            {
+              commandName: 'setMeasurementLabel',
+            },
+          ],
+        },
+      ],
+    },
+  ],
+};
+
+export default defaultContextMenu;