Added Loading state on org pages

public/app/core/components/PageLoader/PageLoader.tsx

@@ -0,0 +1,17 @@
+import React, { SFC } from 'react';
+
+interface Props {
+  pageName: string;
+}
+
+const PageLoader: SFC<Props> = ({ pageName }) => {
+  const loadingText = `Loading ${pageName}...`;
+  return (
+    <div className="page-loader-wrapper">
+      <i className="page-loader-wrapper__spinner fa fa-spinner fa-spin" />
+      <div className="page-loader-wrapper__text">{loadingText}</div>
+    </div>
+  );
+};
+
+export default PageLoader;