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/dicom-video/.webpack/webpack.dev.js

@@ -0,0 +1,8 @@
+const path = require('path');
+const webpackCommon = require('./../../../.webpack/webpack.commonjs.js');
+const SRC_DIR = path.join(__dirname, '../src');
+const DIST_DIR = path.join(__dirname, '../dist');
+
+module.exports = (env, argv) => {
+  return webpackCommon(env, argv, { SRC_DIR, DIST_DIR });
+};