Begin switching study browser use react-viewerbase

OHIFViewer/package-lock.json

@@ -49,6 +49,11 @@
       "integrity": "sha512-c5mRlguI/Pe2dSZmpER62rSCu0ryKmWddzRYsuXc50U2/g8jMOulc31VZMa4mYx31U5xsmSOpDCgH88Vl9cDGQ==",
       "dev": true
     },
+    "classnames": {
+      "version": "2.2.6",
+      "resolved": "https://registry.npmjs.org/classnames/-/classnames-2.2.6.tgz",
+      "integrity": "sha512-JR/iSQOSt+LQIWwrwEzJ9uk0xfN3mTVYMwt1Ir5mUcSN6pU+V4zQFFaJsclJbPuAUQH+yfWef6tm7l1quW3C8Q=="
+    },
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -413,6 +418,13 @@
         "warning": "^4.0.1"
       }
     },
+    "react-viewerbase": {
+      "version": "git://github.com/OHIF/react-viewerbase.git#af26417b7c1da75b713f70b38c9dc3ce29e5c359",
+      "from": "git://github.com/OHIF/react-viewerbase.git",
+      "requires": {
+        "classnames": "^2.2.6"
+      }
+    },
     "readable-stream": {
       "version": "2.3.6",
       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",