feat(OHIF):Add DICOM Video Display

* feat(OHIFv3):Add a video viewport

* Fixed a couple of viewing issues

* fix(OHIF):If not all instances are used by a given provider, then continue to add items

* Added video data

* Add a basic e2e test for video display

* Adding a screen shot as requested

extensions/cornerstone/src/commandsModule.js

@@ -186,7 +186,8 @@ const commandsModule = ({ servicesManager, commandsManager }) => {
         }
 
         const viewportInfo = getEnabledElement(i);
-        const hasCornerstoneContext = viewportInfo.context &&
+        if (!viewportInfo) continue;
+        const hasCornerstoneContext =
           viewportInfo.context === 'ACTIVE_VIEWPORT::CORNERSTONE';
 
         if (hasCornerstoneContext) {