fix(SR): When loading DICOM SR, only one measurement is shown with no way to show others (#3228)

* fix: Make the cornerstone sR viewport show all measurements

* PR fixes

* PR fixes

* Add a DICOM SR hanging protocol

* Duplicate the hanging protocol for seg as well

* PR requested change

* PR requested changes

* PR fixes plus merge update fixes

* PR fixes and integration test fix

* PR - documentation

extensions/cornerstone/src/services/ViewportService/Viewport.ts

@@ -203,6 +203,10 @@ class ViewportInfo {
       orientation = getCornerstoneOrientation(viewportOptionsEntry.orientation);
     }
 
+    if (!toolGroupId) {
+      toolGroupId = DEFAULT_TOOLGROUP_ID;
+    }
+
     this.setViewportOptions({
       ...viewportOptionsEntry,
       viewportId: this.viewportId,
@@ -228,7 +232,8 @@ class ViewportInfo {
   }
 
   public getSyncGroups(): SyncGroup[] {
-    return this.viewportOptions.syncGroups || [];
+    this.viewportOptions.syncGroups ||= [];
+    return this.viewportOptions.syncGroups;
   }
 
   public getDisplaySetOptions(): Array<DisplaySetOptions> {