Integrate Study Prefetcher and Study Loading Listener

OHIFViewer-react/.eslintrc

@@ -0,0 +1,16 @@
+{
+  "extends": [
+  	"react-app",
+  	"eslint:recommended",
+    "plugin:react/recommended"
+  ],
+  "parser": "babel-eslint",
+  "env": {
+    "jest": true
+  },
+  "settings": {
+    "react": {
+      "version": "detect",
+    },
+  },
+}